Friday 20 November 2015

Why is brisk walking better than running and gymming?


Why is brisk walking better than running and gymming?

Keep that brisk walk routine . Studies say this fitness regimen is better than running and gymming

Take the sports shoes out and get into exercise mode. And that does not mean you have to trudge to the gym or take up a fancy workout class. Studies are increasingly showing that a brisk stroll is more valuable than running. This is not only a cheap option, but is also easier on your joints. While running and gymming are also intensity-based work outs that target muscle groups, studies say it is walking that beats all else. Here's a lowdown on these...

BRISK WALKING
You're relying on your own two feet, so make them as comfortable as possible. Wear light flexible shoes that are not too fitting. Start with a warm up and a few stretches. Beginners can start with 20 minutes power-walks at least thrice a week and increase the pace slowly. The right walking action is, land on the heels, rolling through the step and push off again from the toes. Also, raise the chin upwards and don't slouch. For a stronger stride, bend the elbows till they are at 90 degrees with the body and closing the fists, swing your arms from the waist to your chest. You can also do an interval training walk where you break into a quick burst of speedy stride for a minute and then slow down.

Different walking workouts
- Hold an exercise band in your arms while you walk to tone the upper body
- Tighten the butt as you take steps to firm up
- Do lunges as you cool down the walk for a great stretch
Study: For healthy adults, a heart association recommends at least 150 minutes of moderate exercise, like walking, or 75 minutes of vigorous activity (or a combination of both).
Advantages: Walking wakes up even the tiniest muscles and does not put much strain on the joints. It lowers the BMI and the risk of Type II diabetes as well as heart disease.
Disadvantages: It may not have such an intense calorie burn.

RUNNING
This is one of the most popular regimens, but studies say otherwise. "Today, people as young as 20 are getting heart attacks on the treadmill. Also, having low endurance levels and being unprepared can be detrimental to the heart," warns cardiologist Dr Rahul Gupta. "If the heart is untrained and the adrenaline increases, inflammation may occur in the coronary arteries. The increase in blood flow to the heart leads to microtears or plaque rupture. Also, if someone has minor blockages (plaques) they aren't aware of, and they get a tear, it can lead to a clot and blood supply to that place becomes obstructed; this causes heart attacks. Thus, if you feel tightness and breathless, stop immediately. Brisk walking is safer, but if you want to run, see that your body is well prepared first," he adds. How much? An average run burns roughly 10 calories a minute.
Advantages: Running can keep the heart healthy, boost the mood and burn calories. It's also good for those crunched for time.
Disadvantages: Running is more tiring than you realise. It also increases the risk for joint injuries and can stress the body.

Lunchtime walking groups on the rise
Sitting for long hours has been called a 'silent killer' in offices and to combat this, more corporates are taking up a power walk in the middle of the day. Several offices have kicked off a 'lunch hour walking group' where a different person leads the group every day. It was found that this activity boosted productivity and motivation levels, decreased fatigue and elevated the mood.

Hitting the gym
Want to lose the kilos? Ditch the gym. A new study says a brisk stroll is better than a workout. Scientists found 30 minutes of 'high impact' walking is more effective for fighting the flab than the same time spent on doing weights and pounding the treadmill. Dr Grace Lordan, who led a study on this, compared exercises that raise the heart rate and cause sweating — such as brisk walking, swimming, cycling, gym workouts, dancing, running, jogging, football and squash. And the study found that those who did a half-hour stroll had lowest body mass index and smaller waists. He said, "We show that individuals who walk at a brisk or fast pace are more likely to have a lower weight when compared to individuals doing other activities."
Advantages: Gym workouts improve blood circulation. Also, these workout plans are tailored as per your body and capacity so they have many benefits. Doing weights and kettlebell as well as squats also increases bone and muscle strength.
Disadvantages: Treadmill and other cardio workouts can get boring if you do the same thing each time. Often, people use the wrong stride length on the gym belt as it may be because the treadmill is short or too long. With temperatures set to turn pleasant soon, time you got into your tracks and started walking?

Know your breakfast.

http://timesofindia.indiatimes.com/photo/49087381.cms

Eating walnuts may lower heart disease risk

 
Eating walnuts may lower heart disease risk 

Walnuts, can reduce the risk of cardiovascular diseases.
 
WASHINGTON: Consuming about 60 grammes of tree nuts, such as walnuts, daily may lower the risk of cardiovascular disease, a new study has claimed.

After conducting a systematic review and meta-analysis of 61 controlled trials, Michael Falk from Life Sciences Research Organisation in US, found that consuming tree nuts lowers total cholesterol, triglycerides, LDL (bad) cholesterol, and ApoB, the primary protein found in LDL cholesterol.

These are key factors that are used to evaluate a person's risk of cardiovascular disease. Walnuts were investigated in 21 of the 61 trials, more than any other nut reviewed in this study, researchers said.

"Our study results further support the growing body of research that tree nuts, such as walnuts, can reduce the risk of cardiovascular diseases," said Falk.

"Tree nuts contain important nutrients such as unsaturated fats, protein, vitamins and minerals. Walnuts are the only nut that provide a significant amount (2.5 grams per one ounce serving) of alpha-linolenic acid (ALA), the plant-based form of omega-3s," Falk said.

Beyond finding that tree nuts lower total cholesterol, triglycerides, LDL cholesterol and ApoB, researchers also found that consuming at least two servings (two ounces or 57 grammes) per day of tree nuts, such as walnuts, has stronger effects on total cholesterol and LDL.

Additionally, results showed that tree nut consumption may be particularly important for lowering the risk of heart disease in individuals with type 2 diabetes.

Of 1,301 articles surveyed, 61 trials met eligibility criteria for this systematic review and meta-analysis, totalling 2,582 unique participants.

Trials directly provided nuts to the intervention group rather than relying solely on dietary advice to consume nuts.

The dose of nuts varied from 5 to 100g/day and most participants followed their typical diet.

More than two decades of research has shown that walnuts may help lower cardiovascular risk factors by decreasing LDL (bad) cholesterol by 9-16 per cent and diastolic blood pressure by 2-3 mmHg, as well as reducing total cholesterol, raising HDL cholesterol, reducing inflammation as measured by C-reactive protein, and improving arterial function.

These factors are major contributors to heart disease risk, and reducing them is a critical step towards a healthier heart, researchers said.

In addition to providing omega-3s, walnuts also deliver a convenient source of fibre (2 grammes per ounce) and protein (4 grams per ounce).

Thursday 5 November 2015

Standing for at Least a Quarter of the Day Reduces Odds of Obesity, New Study Finds


Standing for at Least a Quarter of the Day Reduces Odds of Obesity, New Study Finds

You may want to reconsider keeping that standing desk after all. A new study published Tuesday shows that people who stand for at least one-quarter of their day appeared to have a significantly lower likelihood of obesity.

The research, led by the American Cancer Society in cooperation with The Cooper Institute, University of Texas and University of Georgia, involved analyzing data from more than 7,000 adult patients who visited the Cooper Clinic in Dallas from 2010 to 2015. Most of the participants were white and college-educated. They were also pretty healthy, without a history of serious conditions like heart attacks, stroke or cancer.

For the first part of the study they were asked a number of fitness questions including this one about standing: "For those activities that you do most days of the week (such as work, school, and housework), how much time do you spend standing?" The answers were grouped into five categories -- almost all of the time; approximately three-quarters of the time; approximately half of the time; approximately one-quarter of the time; almost none of the time.

The second component of the study involved measuring the study participants' body mass index (BMI), body fat percentage and waist circumference and determining whether they had metabolic syndrome (a cluster of symptoms that includes high blood pressure or elevated blood sugar).

The results, published in this month's Mayo Clinic Proceedings, were striking for both genders.

In men, standing a quarter of the time was linked to a 32 percent reduction in obesity and standing half the time with a 59 percent reduced likelihood of obesity. Interestingly, standing three-quarters of the time did not appear to be associated with reduced obesity. In women, standing a quarter, half, and three-quarter was associated with 35 percent, 47 percent and 57 percent respective reductions in obesity.

In both sexes, there appeared to be no association between standing and metabolic syndrome.

Based on the study, "clinicians and public health practitioners should consider encouraging patients to achieve the physical activity guidelines and increase standing time for chronic disease prevention," Kerem Shuval, director of physical activity research for the American Cancer Society, and his colleagues wrote in the paper.

However, Shuval noted that there's still "insufficient evidence specifically focusing on the public health and medical implications of increasing daily standing time as a potential tool for health promotion."

The new study itself is limited by the fact that it's impossible to conclude from the data "whether more standing reduces the risk of obesity and [metabolic syndrome] or whether being obese or having [metabolic syndrome] leads to less standing."

If you're confused about the health benefits of standing vs. sitting you're hardly alone given the recent flurry of news about the topic. Last month, after a widely-shared study published in October in the Journal of Epidemiology found that sitting is not associated with an increased risk of dying, a number of office workers tweeted that they would be saying goodbye to their standing desks.

Shuval's study supports previous research that points to the dangers of being too sedentary. In a 2010 study in the American Journal of Epidemiology, for instance, scientists found that people who sat more than six hours a day had a much higher mortality rate than those sitting less than three hours. Earlier this year, experts writing in the British Journal of Sports Medicine recommended that people stand, wiggle and otherwise move or take breaks for at least two hours -- or a quarter of of the typical eight-hour work day.

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Monday 2 November 2015

Crash diets, rapid weight loss affects back


Percentage of protein, carbohydrates, and fats should be taken according to the body requirement and needs. Along with this, an exercise regime comprising aerobics and weight training should be included.
 
Percentage of protein, carbohydrates, and fats should be taken according to the body requirement and needs. Along with this, an exercise regime comprising aerobics and weight training should be included.

                                                                                                                                                                                 
* Undernourished body, weak muscles

Cutting back on essential food items such as grains and fruits by following low carbohydrate diets can make you lose out on some of the vital nutrients required by the body. This type of under-nourishment affects the whole body. Muscles are not able to function properly causing them to become easily strained.

How it affects the back: Your lower back and abdominal muscles provide a base of support for your spine, holding your body upright. The muscles of the lower back and abdomen are meant to work together to support the upper body and the spine's alignment. As these muscles might not get the essential nutrients required, their ability to repair may become poor. At the same time the amount of time taken for these muscles to recover from injury may increase. Also the muscles fatigue early if the nutrition is not as per the requirement.

Solution: A well balanced diet including appropriate amount of protein, carbohydrates and fat should be taken. The diet depends on the body type, Body Mass Index and Basal metabolic rate. Percentage of protein, carbohydrates, and fats should be taken according to the body requirement and needs. Along with this, an exercise regime comprising aerobics and weight training should be included.

* Dehydration and spinal discs

Some of the low carbohydrate diets are meant to increase water loss in the body for quick weight reduction. If followed without proper guidance, the body can easily become dehydrated while following these diets. Major content of spinal discs are water. Dehydration could occur in the discs as well.

If your body's water content drops by as little as two percent, you will feel fatigued. If it drops by 10 percent, you will experience significant health problems, such as arthritis and back pain.

How it affects the back: Our body is made up of about 70 percent of water. Weight loss that results in a significant amount of water and mineral loss contributes to decreased bone density. Weaker bones can cause spinal misalignments and result in pain. Spinal discs in the body need fluid to maintain height and their ability to absorb shock. Dehydration can lessen the fluids available to spinal discs, which could lead to speedy disc degeneration, bulging or herniation.

Solution: Make sure you drink eight to 10 glasses of water daily. Dehydration is no form of weight loss. Also, it doesn't aid in weight loss. With dehydration, you also lose many important nutrients which are required for the body and the spinal discs.

*Over-exercising and back pain

In addition to crash diets, when you are over-exercising, without the correct nutrients, you are accelerating the process of bone loss and muscle loss.

How it affects back: Calories are a source of energy and repair for the body. If your body is working your muscles extra hard without minimal fuel, then it becomes susceptible to strains. Not resting enough can also add to the back pain. Not to forget that the high intensity workouts lead to a lot of pressure on the spine in turn jelly i.e. the disc.

Solution: Over-exercising and poor nutrition adversely affects your back and may cause back pain. One should also know the right form and extent of exercise required. Wrong forms of exercise loads the spine and could affect the discs and the muscle.

CuraDebt

Wednesday 21 October 2015

Fast asteroid to zoom past Earth on Halloween


An asteroid that was discovered on October 10 is set to zoom past Earth on Halloween, marking the closest encounter our planet has had with one of the massive speeding rocks since 2006, according to NASA.
An asteroid is anticipated to come within 310,000 miles of Earth – about a third longer than the average distance to the moon – its nearest approach is estimated at 11:14 a.m. Eastern on October 31, according to NASA.
Called 2015 TB145, the asteroid was spotted by astronomers on October 10 using the Panoramic Survey Telescope & Rapid Response System (Pan-STARRS) at the University of Hawaii’s Institute for Astronomy. NASA estimates the space rock measures between 984 and 1,542 feet in diameter and is traveling “unusually fast,” according to the space agency, at about 78,000 miles per hour.
The Panoramic Survey Telescope & Rapid Response System — is an innovative design for a wide-field imaging facility developed at the University of Hawaii’s Institute for Astronomy.
“The flyby presents a truly outstanding scientific opportunity to study the physical properties of this object,” NASA said in a statement. An asteroid 2009 FD first noticed by the La Sagra Sky Survey on in March 2009, but precovery observations were also found in data from Spacewatch data from February 24, 2009.  The Minor Planet Center credits both search programs with the discovery.
2009 FD is not classified as a “Potentially Hazardous Asteroid” because its absolute magnitude is slightly fainter than the cutoff of 22.  WISE and radar observations discussed above show that the diameter is probably at least 300 meters, so it’s large enough to be “potentially hazardous” even though it isn’t classified as such.
Described as having an “extremely eccentric” orbit and appearing “cometary in nature,” NASA said this asteroid is incredibly fast and predicts it will zoom past Earth at 78,000 miles per hour.
“The flyby presents a truly outstanding scientific opportunity to study the physical properties of this object,” NASA officials wrote. It’s worth noting this asteroid was only discovered days ago, but its next close encounter with Earth is expected to happen in a dozen years from now, in August 2027.

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Sunday 18 October 2015

So sex is what men will go for, even at expense of food: Study


Food or sex? If men are given this choice, men will do what they have always done – go for sex. That’s what a study has proved through analysis of neurons in brain of male nematode worms.
According to researchers at University College London (UCL), UK and Albert Einstein College of Medicine (USA), there is a direct relation between how male and female worms behave and the differences in brain development and structure in areas involved in higher order processing. Researchers found through their study that the genetic and developmental differences in the brain of male and female worms causes structural differences in the brain during sexual maturation.
This is what causes the difference in behavior as far as sex is concerned. Brain of males tend to remember previous sexual encounters and when given an option, opt for sex over other choices.
Researchers further identified that this behavioral change is a direct result of previously unidentified cells. Researchers say that these two neurons are born from cells calls glial cells, which are companion and support cells of neurons.
Researchers have named the two newly identified neurons as ‘mystery cells of the male’ or ‘MCMs’. These cells bring about behavioral differences between the two sexes by changing a brain circuit common to both. Whether the neurons are born or not depends on the genetic sex of the glial cells from which they arise and not on the sex of the animal or on hormones. The MCM neurons are only made from glial cells that have male chromosomes.
“Our findings suggest that differences in learning and perception depend not just on the sex of the animal but also on the sex of the individual neural progenitor cells”, says co-senior author Dr Richard Poole, UCL Cell & Developmental Biology. “This means that different aspects of an animal’s behavior may well develop independently of each other in some circumstances, instead of through the co-ordinated action of hormones.”
The effect of the cells on the worms’ (males and hermaphrodites) behaviour was tested using classic conditioning behavioural assays in which worms learn to associate aversive or pleasant experiences (such as starvation or mates) with another stimulus (salt) and change their behavioural responses to that stimulus. Worms that were previously starved in the presence of salt, learned to move away from areas with high concentrations of salt when placed in a new environment that had various different salt concentrations. This indicated that worms had learned to perceive salt as a sign for the absence of food.
Both males and hermaphrodites perform this type of learning. In contrast, when males were starved in the presence of salt and mates (i.e. sexual partners), and then placed in a new environment that had different salt concentrations, males sought areas of high concentrations of salt. This indicated that the association of salt with sex was stronger than and preferred over the association of salt with lack of food. This change in behaviour does not occur in hermaphrodites. Importantly, it also does not occur in males whose MCM neurons were surgically removed – demonstrating that these neurons are required for sex-based differences in learning.

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Friday 16 October 2015

4 surprising signs that point to serious illness



4 surprising signs that point to serious illness



Testicular cancer patients test positive for pregnancy, and other surprising signs that are often misread actually point towards a serious health condition.

When Byron Geldard, an 18-year-old resident of Huntingdon, Cambridgeshire, went to the Teenage Cancer Trust unit in Cambridge last August, he was suffering from pain in his side. He didn't expect to be prescribed a urine pregnancy test.Worse, it came back positive. In Geldard's case, the positive results pointed to testicular cancer.A spokeswoman told UK daily, The Telegraph, urine pregnancy tests are being used to diagnose testicular cancer since the proteins detected in the urine of testicular cancer patients as identical to those present in the urine of pregnant women. It may sound strange, but often, diseases show up in symptoms that seem bafflingly unrelated. Here's are a few to watch out for.

SYMPTOM: ICE CRAVING

POINTS TO: ANAEMIA

If you have lost the desire for food but have picked up an appetite for ice, sand, chalk, stone etc., there's a chance that you could be anaemic, says a study by French researchers, published in 2005 in the American Journal of Medicine. The disorder is called pica.

Dr Hemant Thacker, honorary physician, Jaslok Hospital, says, the association between iron deficiency and craving for ice, chalk and paint has not been scientifically established. "The symptom goes away when the problem is addressed, unless of course there is a delay and pica turns into a habit," he adds. About 44 percent of anaemics crave ice, which may be linked to seeking relief from chronic tongue pain or swelling.

SYMPTOM: KLEPTOMANIA

POINTS TO: DEMENTIA

A newfound urge to steal, according to research published in JAMA Neurology is one of the earliest known signs of a type of dementia that messes with a part of the brain that helps you recognise societal rules. You could want to steal anything from candy from the grocer to expensive perfume at a mall. "When a person starts developing dementia, the prefrontal cortex region of his brain, which controls social judgement, starts malfunctioning. A healthy person is able to control his urges, unlike here," explains Dr Yusuf Matcheswalla, professor of psychiatry, Grant Government Medical College. He adds that dementia -an umbrella term used to describe impairment of memory, communication and thinking -can be prevented with a diet balanced with multivitamins, especially E, B12 and folic acid.

SYMPTOM: BAD BREATH

POINTS TO: ERECTILE DYSFUNCTION

You may want to think that the terrible dragon breath is a sign of poor oral hygiene. However, halitosis could point to a liver condition.

When suffering from diabetic ketoacidosis, the body is unable to effectively break down and use glucose as energy source. So, it opts to break down body fat instead. As a byproduct, the body produces ketones which result in sweet, fruity breath, especially if chemicals continue to build up in the blood and urine, according to the National Institutes of Health. Diabetic ketoacidosis can become a serious problem if unaddressed, because ketones are poisonous at high levels.

Dr Rajan Bhonsle, Head of Department of Sexual Medicine, KEM Hospital and G.S. Medical College, says, "If the liver is compromised and not functioning optimally, the `free testosterone' level in the blood gets affected, thereby affecting libido and erection. Therefore a bad liver could cause erectile dysfunction, and bad breath could be an indicator of it."

SYMPTOM: SUDDEN CHILLS

DISEASE: HYPOTHYROIDISM

Feeling a chill even while you are out in the hot sun? It could be a sign of an underactive thyroid gland, suggests research from Southern Illinois University. "The abnormality of the thyroid gland affects temperature centers of the brain. The patient suddenly feels cold or hot despite no change in outside temperature. This may not be an atypical symptom, however, most patients do not bring it to the doctor's immediate notice," says Dr Thacker.

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Wednesday 14 October 2015

5 confusing healthy habits




5 confusing healthy habits


As soon as it's established that you are feeling under the weather, everyone around you feels the need to offer unsolicited advice.

The sick must then sort through endless heaps of free and well-meaning advice to pick which home remedies, traditional roots or reiki would offer the most effective cure. Here are five common health beliefs debugged:

SHOULD YOU FEED A COLD AND STARVE A FEVER?

In both cases, the patient must continue to eat and drink, then drink some more. Make sure you have plenty of water to stay hydrated.This is because, your body loses more fluid when combating illness.Special beverages containing electrolytes are important only if you are feeling dehydrated or losing an unnatural amount of fluid due to vomiting or diarrhoea.

Thumb rule; a fever isn't just a sign that you're sick, it is a billboard that you're trying to heal.

An increase of just 1 to 2 degrees in your body temperature boosts the productivity of your immune cells and helps them fight off infection.This means that when you pop a pill to reduce your temperature, you are doing more harm than good.

When you have a fever, your body shivers. The natural response would be to move to a warmer spot like the comfort of your blanket. Do it. Your body isn't declaring a war on you. Fighting what comes naturally is not going to help the situation.

If a fever persists beyond the regular three days, or if it exceeds 103 degree, it is time to visit the doctor.

TO BANDAGE OR NOT TO BANDAGE?

There are three ways in which most of us handle an open wound; rinse it with water; then bandage, let it breathe until it scabs over and clean it with hydrogen peroxide.

Unfortunately, none of these methods are ideal.

For tough guys who think bandages are for babies, be warned. The battle wound may turn into an ugly scar. Letting a wound scab over instead of keeping it moist is likely to cause inflammation, which extends healing time and can result in unwanted scarring.

Also, while the sting of hydrogen peroxide makes you think its working, the stuff is ineffective at stifling bacteria.

Antibiotic ointments are known to cause skin reactions.The surest way is to wash your hands, then flush the cut with water. Next, add a dab of petroleum jelly to keep it moist and cover it with a bandage.

WHAT'S THE BEST WAY TO TREAT BACK PAIN?

Again, like with treating cuts, attacking a back pain is dealt with by popping a pain killer and praying for relief, ice and heat treatment, or resting.

Research has shown that popping a pain killer is about as helpful as treating yourself with a sugar pill.Heating your back may provide brief relief, but the evidence that icing works at all is lacking.

There's only one way to escape the stranglehold on your spine: move. Often, people are scared of movement, but it's the best recommended way to tackle it. But don't overdo it. Begin by taking a simple walk around the block, and then gradually up the activity ante over the next couple of weeks.

CAN YOU DRINK TOO MUCH WATER?

The eight glasses of H2O a day dilemma is one that has gown through a long-winded debate.

Doctors say the eight glasses rule is arbitrary. Depending on your activity level, diet, age, and climate, you may need more or less than that exalted eight anyway. Instead of tracking your fluid consumption, count how many times you visit the urinal. Five is an international average. You can also judge the colour of your stream. If it looks like lemonade or lighter, you're fine.

SHOULD YOU BRUSH YOUR TEETH AFTER EVERY MEAL?

Thirty per cent of people are too lazy to brush their teeth once in the morning and once at night and the other 70 per cent are doing it right, according to a study conducted by the American Dental Association in 2010.

Dentists suggest gargling after every meal so that stray pieces of food don't remain lodged between your teeth. When you do brush, make sure you commit to the act for at least two minutes. Divide your mouth into four sections and spend 30 seconds on each. Some electric toothbrushes come built with a timer so you aren't biased towards your grinders while ignoring your molars. But don't get brush happy. If you brush after every meal, or for too long, you could end up eroding the enamel. This is especially relevant if your previous meal included acidic foods.

Not brushing well could leave you open to the risk of gum disease and decay. However, over brushing could also leave you prone to cavities, gum disease and decay.






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Signs of excessive sleeping and its side effects



Signs of excessive sleeping and its side effects

Insomnia and lack of sleep are the biggest factors for developing different health problems. But excessive sleeping can also pose a problem to health.
What is Excessive Sleeping?

According to Dr. Ravindra Gupta, "It is a state is which one feels dozing off in the waking hours and lethargic during the day even after having a sufficient amount of sleep. And feel fatigued all the time. Unpredictable mood swings."

Signs of Excessive Sleeping:

Fatigue and irritability

Dozing off in office or while driving

Inability to concentrate.

Seen in those who are obese

Those who have obstructive sleep apnoea.

Negative health effects of Excessive Sleeping:

Gaining weight

Irritability

Hypertension

Increase risk of accidents.

Excessive sleeping is also called hypersomina and is caused by medication, inadequate sleep, working in shifts, sleep disorders, and psychological problems.

CuraDebt

Tuesday 13 October 2015

Post-sex depression is for real in some women











This condition is described by tearfulness, a sense of depression, apprehension, agitation or aggression after sexual intercourse.
The paper was published in the Journal of Sexual Medicine.
For the study, 230 female university students participated in an online survey. Nearly 46 percent of the participants reported experiencing PCD symptoms at least once in their lifetime. Over five percent suffered PCD symptoms a few times within the past four weeks.
There seemed to be no connection between PCD and intimacy in close relationships.
Lead researcher Dr Robert Schweitzer said, "The findings build upon our previous research investigating the correlates of sexual functioning in women."
Dr Schweitzer noted, "The results of our original research in this area have now been confirmed in an international multinational study on negative postcoital emotions, which appear to have evolutionary functions."
As per a recent Australian study published in the International Journal of Sexual Health, one-third of women said they felt sad even after satisfactory sex. The researchers speculated that hormonal shifts after orgasm - the same changes that sometimes activate post-sex headaches - could be the reason.

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Drinking cranberry juice may protect your heart






 Two cups of cranberry juice daily may help protect you against cardiovascular diseases, suggests new research.
"Cranberry juice is a rich source of phytonutrients, including proanthocyanidins, anthocyanins and phenolic acids," explained Ana Rodriguez-Mateos from University Duesseldorf, Germany.
"Due to this robust profile of polyphenols, our team sought to evaluate the immediate vascular impact of drinking one, 450 ml glass of cranberry juice with a different range of concentrations of cranberry-polyphenols," Rodriguez-Mateos noted.
Researchers gave 10 healthy men, between the ages of 18-40 years, 450 ml (just under two cups) of sweetened cranberry juice made from concentrate. 
The cranberry concentrate was prepared with water to concentrations ranging from zero to 117 percent. The amount of cranberry-polyphenols increased with the concentration. 
The researchers detected significant vascular function improvements and improved blood flow in the men after drinking cranberry juice.
They, however, found that improvement in vascular function was dose-dependent.
Defending the health of the circulatory system - and improving vascular function - not only reduces the chance of developing atherosclerosis, but plays an important role in kidney function, hormone delivery and waste filtration, the study noted.
The highest concentration of cranberry-polyphenol juice also showed improvements in systolic blood pressure.
"Our results lay the groundwork to better understand the array of potential vascular and cardiovascular health benefits of cranberry polyphenols," Rodriguez-Mateos said.
"Significant improvements in vascular function from drinking two cups of cranberry juice suggest an important role for cranberries in a heart-healthy diet," Rodriguez-Mateos pointed out.

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Friday 2 October 2015

High-quality carbs may lower heart disease risk


Eliminating saturated fats can improve the health of the heart, but what you replace them with makes all the difference, says a study. Replacing saturated fats with unsaturated fats and high-quality carbohydrates has the most impact on reducing the risk of heart disease, according to the study.
When saturated fats were replaced with highly processed foods, there was no benefit, the study found. "We found that when study participants consumed less saturated fats, they were replacing them with low-quality carbohydrates such as refined grains that are not beneficial to preventing heart disease," said study author professor Frank B Hu from Harvard T.H. Chan School of Public Health.

"Our findings suggest that when patients are making lifestyle changes to their diets, cardiologists should encourage the consumption of unsaturated fats like vegetable oils, nuts, and seeds, as well as healthy carbohydrates such as whole grains," Hu said. For this study, researchers followed 84,628 women and 42,908 men who were free of diabetes, cardiovascular disease and cancer and documented 7,667 incidents of coronary heart disease..
Researchers noted that participants generally replaced calories from saturated fatty acids with calories from low-quality carbohydrates -- such as white bread or potatoes -- rather than calories from unsaturated fats found in vegetable oils, nuts and seeds or high-quality carbohydrates like those in whole grains.
Replacing 5 per cent of energy intake from saturated fats with an equivalent intake from either polyunsaturated fats, monounsaturated fats, or carbohydrates from whole grains was associated with 25 per cent, 15 per cent, and 9 per cent lower risk of coronary heart disease, respectively.
However, replacing 5 per cent of energy intake from saturated fats with carbohydrates from refined starches or sugars was not associated with either increased or decreased risk of coronary heart disease.

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How Binge Drinking Leads to Alcohol Addiction


How Binge Drinking Leads to Alcohol Addiction

  A malfunctioning enzyme may be behind why people who love to binge drink on weekends or at parties are at a higher risk of alcohol addiction, scientists from Stanford University reported.

The scientists identified a previously unsuspected job performed by the enzyme named "ALDH1a1" in mice.

Researchers showed that blocking ALDH1a1 activity caused mice's consumption of and preference for alcohol to rise to levels equivalent to those observed in mice that had experienced several rounds of the equivalent of binge drinking.

Restoring ALDH1a1 levels reversed this effect.

"The discovery could help guide the development of medications that extinguish the urge to consume alcohol," said Jun Ding, assistant professor of neurosurgery.

A key finding in the new study is that in certain nerve cells strongly implicated in addictive behaviours, ALDH1a1 is an essential piece of a previously unknown biochemical assembly line for the manufacture of an important neurotransmitter called GABA.

Neurotransmitters are chemicals that bind to receptors on nerve cells, promoting or inhibiting signaling activity in those cells.

GABA is the brain's main inhibitory neurotransmitter.

Another neurotransmitter substance - dopamine - supercharges the machinery of the brain's so-called reward circuit, which is involved in addictive behaviour from cocaine, morphine and alcohol abuse to compulsive gambling.

According to Ding, GABA's co-release with dopamine, and GABA's inhibitory character, may be what prevents everyday pleasurable sensations from causing most of us to become addicted to the behaviours that produce them.

Mutations in ALDH1a1, he said, may predispose some people to alcoholism by disabling this brake on our reward machinery.

His lab is now exploring whether the same molecular mechanisms may be at work in other forms of addiction.

More than 200 million people globally suffer from it alcohol addiction. Binge drinking substantially increases the likelihood of developing alcoholism.

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Action video games improve brain function: Study

 
Action video games -- which feature quickly moving targets, include large amounts of clutter, and that require the user to make rapid, accurate decisions - have particularly positive cognitive impacts, says a new study.

The study claimed that such video games are even better in their impact than "brain games", which are created specifically to improve cognitive function.

"Action video games have been linked to improving attention skills, brain processing, and cognitive functions, including low-level vision through high-level cognitive abilities," said lead researcher C. Shawn Green from the University of Wisconsin-Madison.

"Many other types of games do not produce an equivalent impact on perception and cognition," he added.
Brain games typically embody few of the qualities of the commercial video games linked with cognitive improvement, the researchers noted.
Furthermore, video games are known to impact not only cognitive function, but many other aspects of behaviour - including social functions - and this impact can be either positive or negative depending on the content of the games.

"Modern video games have evolved into sophisticated experiences that instantiate many principles known by psychologists, neuroscientists, and educators to be fundamental to altering behaviour, producing learning, and promoting brain plasticity," said co-lead researcher Aaron R. Seitz from the University of California-Riverside

"Video games, by their very nature, involve predominately active forms of learning (that is, making responses and receiving immediate informative feedback), which is typically more effective than passive learning,"

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Thursday 1 October 2015

Vitamin D Rich Diet Can Help Fight Breast Cancer


Vitamin D Rich Diet Can Help Fight Breast Cancer










Breast cancer patients with high levels of vitamin D in their blood are twice as likely to survive the disease as women with low levels of this nutrient, scientists have found. In previous studies, Cedric F Garland, professor in the Department of Family and Preventive Medicine at the University of California - San Diego, showed that low vitamin D levels were linked to a high risk of premenopausal breast cancer.

The findings, he said, prompted him to question the relationship between 25-hydroxyvitamin D - a metabolite produced by the body from the ingestion of vitamin D - and breast cancer survival rates.

Garland and colleagues performed a statistical analysis of five studies of 25-hydroxyvitamin D obtained at the time of patient diagnosis and their follow-up for an average of nine years. Combined, the studies included 4,443 breast cancer patients.

"Vitamin D metabolites increase communication between cells by switching on a protein that blocks aggressive cell division," said Garland. "As long as vitamin D receptors are present tumour growth is prevented and kept from expanding its blood supply.

Vitamin D receptors are not lost until a tumour is very advanced. This is the reason for better survival in patients whose vitamin D blood levels are high," Garland said. Women in the high serum group had an average level of 30 nanograms per millilitre (ng/ml) of 25-hydroxyvitamin D in their blood. The low group averaged 17 ng/ml.

The average level in patients with breast cancer in the US is 17 ng/ml. "The study has implications for including vitamin D as an adjuvant to conventional breast cancer therapy," said co-author Heather Hofflich, UC San Diego associate professor in the Department of Medicine.

Garland recommended randomised controlled clinical trials to confirm the findings but suggested physicians consider adding vitamin D into a breast cancer patient's standard care now and then closely monitor the patient. The study is published in the journal Anticancer.




A Vitamin a Day Keeps the Doc Away


A Vitamin a Day Keeps the Doc Away











It was a hundred years ago, in 1912, when scientist Casimir Funk coined the term 'Vitamins'. Since then, researchers have identified 13 vitamin types, which are essential for a healthy body.

VITAMIN A

Important For: Vision, immune system, bones, skin health
Sources: Liver, egg yolk, butter, milk, cheese, orange-colored fruits such as melon and leafy vegetables
Vitamin Deficiency: Symptoms include night blindness, dry skin, sluggish immune system, delayed growth
Vitamin Excess: Causes hair loss, birth defects, liver and skin problems


VITAMIN D

Important For: Bone and teeth development, muscles, immune system
Sources: Sunlight on skin, oils, saltwater fish such as salmon and mackerel, eggs, meat, milk, butter, mushrooms
Vitamin Deficiency: Symptoms include rickets, reduced muscle strength, deformations, bone loss, softening of bones, Osteoporosis
Vitamin Excess: Causes hair and weight loss


VITAMIN E

Important For: Healthy tissue, organs, cells, blood flow, higher rate of fertility
Sources: Milk, butter, eggs, vegetable oils, nuts, whole grains, wheat germ, vegetables (spinach, lettuce, cabbage)
Vitamin Deficiency: Symptoms include muscle weakness, weak vision, damaged blood cells, low immunity
Vitamin Excess: Causes bleeding, fatigue


VITAMIN K

Important For: Blood clotting, bones, heart
Sources: Cheese, meat, liver, leafy green vegetables, oats, potatoes, tomatoes, vegetable oils, soya beans
Vitamin Deficiency: Symptoms include cuts that heal slowly, excessive bleeding, bleeding from gums or nose
Vitamin Excess: Synthetic Vitamin K causes liver damage, jaundice


VITAMIN B1

Important For: Nervous system, muscles, heart function, healthy growth
Sources: Yeast, whole-grain cereals, leafy vegetables, dry fruit, nuts, tuna fish, pork
Vitamin Deficiency: Symptoms include delayed growth, fatigue, lack of alertness, weight loss, night blindness, paralysis
Vitamin Excess: Upset stomach, discolored urine, seizures, diarrhea


VITAMIN B2

Important For: Metabolism, growth, vision, development of tissues
Sources: Milk and milk products, lean meat, eggs, liver, leafy green vegetables, yeast, whole grain cereals
Vitamin Deficiency: Sores on lips, the tongue and corners of mouth, sensitivity to light, fatigue, digestive problems
Vitamin Excess: It dissolves in water, so excess is passed in the urine


VITAMIN B5

Important For: Metabolism, healing wounds
Sources: Yeast, whole grain cereals, nuts, legumes, vegetables, mushrooms, liver, heart, fish, chicken, beef, egg yolk, milk
Vitamin Deficiency: Fatigue, insomnia, depression, respiratory infections, vomiting, headache
Vitamin Excess: Excess is passed in the urine


VITAMIN B7

Important For: Hair roots, fingernails
Sources: Yeast, vegetables, cereals, walnuts, peanuts, soya beans, liver, kidneys, meat (pork, mutton, poultry), egg yolk
Vitamin Deficiency: Nausea, vomiting, depression, dry skin, loss of appetite, affects muscle coordination, loss of hair color, hair loss
Vitamin Excess: Excess is passed in the urine


VITAMIN C

Important For: Immune system, tissue growth, bone / teeth repair, eyes, nervous system
Sources: Milk, citrus fruits, blackcurrants, strawberries, guava, mango, peppers, potatoes, cabbage, tomatoes
Vitamin Deficiency: Symptoms include splitting hair, inflamed / bleeding gums, dry skin
Vitamin Excess: Kidney stones


VITAMIN B3

Important For: Growth, nervous system
Sources: Liver, kidneys, heart, fish, meat, yeast, cereals, avocados, figs, dates, prunes, nuts, legumes
Vitamin Deficiency: Skin lesions, diarrhea, confusion, digestive problems, insomnia, fatigue, loss of appetite, vomiting, depression
Vitamin Excess: Excess is passed in the urine


VITAMIN B6

Important For: Metabolism, brain function, immune system
Sources: Walnuts, peanuts, corn, whole grains, bread, chicken, liver, pork, veal, salmon, tuna, sardines
Vitamin Deficiency: Kidney stones, depression, fatigue, dizziness, nerve problems, convulsions, skin lesions
Vitamin Excess: Photo sensitivity, nausea and heartburn.


VITAMIN B9

Important For: Red and white blood cells, nerve cells
Sources: Dark leafy green vegetables, beets, wheat germ, yeast, peanuts, oranges, beans, liver, milk, dairy products, egg yolk
Vitamin Deficiency: Tiredness, loss of appetite, neurological problems, digestive problems, severe birth defects
Vitamin Excess: Excess is passed in the urine.


VITAMIN B12

Important For: Red blood cells, metabolism, immune system
Sources: Liver (best source), kidneys, heart, meat, eggs, fish, dairy products
Vitamin Deficiency: Anemia, nerve damage, fatigue, loss of appetite, shortness of breath, diarrhea, tingling in fingers and toes, spinal cord degeneration, neurological problems
Vitamin Excess: Rash, blood clots