Living near gym may make you slimmer

Agencies
January 6, 2018

People who live close to gyms, pools and playing fields weigh less and have smaller waistlines than their counterparts residing farther away from exercise facilities, a UK study suggests.

Living far away from fast food outlets also appeared to help people maintain a lower weight and trimmer waist, although this connection wasn’t as strong as the proximity of gyms, researchers report in the Lancet Public Health.

“It is likely that communities without the neighborhood resources needed to encourage a healthy lifestyle put their residents at a higher risk of obesity,” said senior study author Steven Cummins of the London School of Hygiene & Tropical Medicine.

“This could be improved by restricting the number of new fast food outlets in a neighborhood and how close they can be to people’s homes, incentivizing operators of physical activity facilities to open in residential areas with few facilities, or funding local authorities to provide such facilities,” Cummins said by email.

Globally, more than 1.9 billion adults are overweight or obese, according to the World Health Organization. The condition contributes to a variety of common medical problems including heart disease, diabetes and certain cancers.

For the study, researchers examined data on weight, waist measurements and body fat for more than 400,000 men and women ranging in age from 40 to 70.

The study used data collected between 2006 and 2010 that included demographic characteristics like household income, as well as what types of eating and exercising options were available near people’s home addresses.

To determine exercise opportunities, researchers looked for indoor and outdoor facilities for sports and leisure activities such as gyms, swimming pools and playing fields. They didn’t consider public parks or cycling and walking paths.

On average, people had just one exercise facility within 1 kilometer (0.62 miles) of home. And almost one-third of participants had no options this close to where they lived, the study found.

People typically had to travel just 1.1 kilometers (0.68 miles) to reach a fast food outlet. Nearly one in five people had a fast food restaurant within a half-kilometer (0.31 miles) of home.

Better access to exercise options translated into a healthier weight.

Compared to people who had no facilities near home, people who had at least six places to work out weighed less, had a 1.22 centimeter (0.47 inch) slimmer waistline, and had a body fat percentage that was 0.81 percent lower on average.

At the same time, people who lived at least 2 kilometers (1.24 miles) from a fast food outlet had a waistline 0.26 centimeters (0.10 inches) smaller than individuals who lived less than a half-kilometer away, the study also found.

One limitation of the study is that not all fast food restaurants may have been included in the database, the authors note. The study also didn’t account for the proximity of healthy dining establishments near home, or the type of food and workout options close to where people worked.

The study was not a controlled experiment designed to prove whether or how neighborhood characteristics like the availability of gyms or greasy spoons might impact obesity rates.

It’s hard to rule out the possibility that healthier people may choose to live near the amenities they need to stay healthy, said Pablo Monsivais, author of an accompanying editorial and a nutrition and exercise researcher at Washington State University in Spokane.

But the study still suggests that where we live matters, Monsivais said by email.

“Individually, each of us makes choices that affect whether we maintain a healthy weight or put on pounds, but these choices are shaped by the environments we inhabit,” Monsivais added. “This study looked at just a few features of the environment, but research shows that things like green space, walkability, noise, air quality and the availability of healthy food choices all seem to matter for our health and body weight.”

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Agencies
March 11,2020

With the sales of chicken and mutton going down due to the coronavirus scare, it is the humble 'Kathal' (jackfruit) is emerging as an acceptable alternative.

'Kathal' is now selling at ₹120 per kilogram -- an increase of more than 120 per cent over the normal ₹50 per kilogram.

The jackfruit, in fact, is now priced higher than chicken which is selling at ₹80 per kilogram due to poor demand.

"It is better having a 'Kathal' biryani instead of a mutton biryani. It tastes reasonably good. The only problem is that 'Kathal' has been sold out in the vegetable market and is difficult to find," said Purnima Srivastava whose family savours non-vegetarian food on a regular basis.

The corona scare has hit poultry business so hard and the Poultry Farm Association recently organized a Chicken Mela in Gorakhpur to dispel the misconception that birds are carriers of the deadly virus.

"In fact, we gave away plateful of chicken dishes for Rs 30 to encourage people to savour the delicacies. We cooked one thousand kilograms of chicken for the Mela and the entire stock was sold out," said Vineet Singh, head of the Poultry Farm Association.

However, the Mela did not do much to dispel the fears about chicken, mutton or fish consumption amid the virus outbreak.

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News Network
February 22,2020

Feb 22: The subjective feeling of well-being experienced by many people with the practice of meditation is associated with specific changes in the brain, according to a study which may lead to better clinical recommendations of the practice.

The study, published in the journal Brain and Cognition, examined the effects of the technique known as Transcendental Meditation (TM), which consists of the silent repetition of a meaningless sound.

In the study, the researchers from the IMT School for Advanced Studies Lucca in Italy, enrolled 34 healthy young volunteers and divided them in two groups.

They said the first group practised TM 40 minutes per day in two sessions of 20 minutes each, one in the morning and the other in the evening.

The second group, the scientists said, did not change its daily routine.

Using questionnaires, they also measured the anxiety and stress levels of all the participants at the beginning of the study, as well as the subjects' ability to manage stressful situations.

According to the researchers, the participants were also subjected to a functional magnetic resonance imaging (fMRI) brain scan, in order to measure the organ's activity at rest, and changes in the excitation among different cerebral areas.

They repeated the tests after three months, at the end of the study.

According to the study, the levels of anxiety and stress perceived by the subjects who followed the meditation program were significantly reduced in comparison with those of the volunteers who did not practice TM.

"Magnetic resonance imaging also shows that the reduction of anxiety levels is associated with specific changes in the connectivity between different cerebral areas, such as precuneus, left parietal lobe and insula, which all have an important role in the modulation of emotions and inner states," said study co-author Giulia Avvenuti from the IMT School for Advanced Studies Lucca.

"In the control group, instead, none of these changes was observed. The fact that Transcendental Meditation has measurable effects on the 'dialogue' between brain structures involved in the modulation of affective states opens new perspectives for the understanding of brain-mind relationships," said Pietro Pietrini, IMT School's Director, and co-author of the study.

"It also extends the results of recent research suggesting that drugs therapies and psychotherapy leverage on the same biological mechanism," Pietrini said.

According to the researchers, even a few months of practice of TM can have positive effects which can be correlated with measurable changes in the brain.

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News Network
February 21,2020

Washington, Feb 21: The fat around arteries may play an important role in keeping the blood vessels healthy, according to a study in rats that may affect how researchers test for treatments related to plaque buildup, as seen in conditions leading to heart attack.

The study, published in the journal Scientific Reports, noted that the fat, known as perivascular adipose tissue, or PVAT, helps arteries let go of muscular tension while under constant strain.

According to the researchers, including Stephanie W. Watts from the Michigan State University in the US, this feature is similar to how the bladder expands to accommodate more liquid, while at the same time keeping it from spilling out.

"In our study, PVAT reduced the tension that blood vessels experience when stretched," Watts said.

"And that's a good thing, because the vessel then expends less energy. It's not under as much stress," she added.

According to Watts and her team, PVAT has largely been ignored by researchers believing its main job was to store lipids and do little more.

Until now, she said, scientists only divided blood vessels into three parts, the innermost layer called the tunica intima, the middle layer called the tunica media, and the outermost layer called the tunica adventitia.

Watts believes PVAT is the fourth layer, which others have called tunica adiposa.

Tunica, she said, meant a membranous sheath enveloping or lining an organ, and adiposa is a synonym for fat.

"For years, we ignored this layer -- in the lab it was thrown out. In the clinic it wasn't imaged. But now we're discovering it may be integral to our blood vessels," Watts said.

"Our finding redefines what the functional blood vessels are, and is part of what can be dysfunctional in diseases that afflict us, including hypertension. We need to pay attention to this layer of a blood vessel because it does far more than we originally thought," she added.

Earlier studies, Watts said, had shown that PVAT plays a role in the functioning of blood vessels, finding that it secretes substances that can cause blood vessels to relax as well as substances that can cause it to contract.

In the current study, the researchers decided to test whether PVAT provides a structural benefit to arteries by assisting the function of stress relaxation.

They tested the thoracic aorta in rats, and found those with intact PVAT had more stress relaxation than those without.

The study revealed that the pieces of artery with surrounding fat had measurably relaxed more than those without.

Watts and her colleagues then tested other arteries, and were able to duplicate the same response.

"It's not something you see only in this particular vessel or this particular species or this particular strain. But that maybe it's a general phenomenon," she said.

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