Reducing intake of niacin can prevent obesity

Washington, May 21 (ANI): Scientists in China have suggested that reducing the intake of niacin, also known as vitamin B3 or nicotinic acid, can prevent obesity.

Dietary factors have long been known to play a major role in the development of obesity. The global increasing prevalence of obesity suggests that there should be some common changes in diet worldwide.

In fact, a significant, yet, often-neglected worldwide change in dietary factors in the past few decades is the food fortification-induced

marked increase in the content of niacin.

However, the effect of long-term exposure to excess niacin on human health remains to be unclear.

Now, a research team from China has examined the role of excess nicotinamide in glucose metabolism using co-loading of glucose and nicotinamide test.

They have proved that excess niacin intake-induced biphasic response, i.e., insulin resistance in the early phase and hypoglycemia in the late phase, may be a primary cause for the increased appetite in obesity.

The study has also revealed for the first time that the obesity prevalence among US children and adolescents increased in parallel with the increase of the per capita niacin consumption with a 10-year lag, in which niacin fortification-induced sharp increase in niacin contents in grain products may play a major role.

Reducing niacin intake and facilitating niacin elimination through sweat-inducing physical activity may be a key factor in the prevention and treatment of obesity.

It seems that the long-term safety of niacin fortification needs to be carefully evaluated.

The study will be published on May 21, 2010 in the World Journal of Gastroenterology. (ANI)

Men with more money have bigger waistlines

Washington, May 15 (ANI): Wealthy men increase their likelihood of being overweight with every extra dollar they make, a new Canadian study has claimed.

The study, led by Nathalie Dumas, a graduate student at the University of Montreal Department of Sociology, presented the finding at the annual conference of the Association francophone pour le savoir (ACFAS).

“Women aren”t spared by this correlation, but results are ambiguous,” says Dumas. “However, women from rich households are less likely to be obese than women of middle or lower income.”

To reach the conclusion, Dumas used data from the 2004 Canadian Community Health Survey (CCHS). This provided access to information from some 7,000 adults aged 25 to 65.

After analysing the data, Dumas concluded that a socioeconomic hypothesis could only explain the link of obesity and income for women.

“Since the 1980s, the greatest increase in obesity levels has been among rich Canadian and Korean men,” says Dumas. “We still can”t explain why.” According to Dumas, one possible explanation is dining out. “Canadians love restaurants. And people who regularly eat out have no control over what they eat. They also tend to eat more calories and consume larger amounts of alcohol.”

Too many restaurant meals, combined with a decrease in physical activity, is another possibility.

“There are obviously various factors at play: we still haven”t empirically proved them,” says Dumas. (ANI)

Lose weight quickly, not gradually, for long-term success

Washington, May 6 (ANI): The key to long-term weight loss and maintenance is to lose weight quickly, not gradually, in the initial stages of obesity treatment, suggests a new study.

As part of the study, Lisa Nackers and colleagues, from the University of Florida in the US, and her team examined the association between rate of initial weight loss and long-term maintenance of lost weight, by looking specifically at whether losing weight at a slow initial rate results in larger long-term weight reduction and less weight regain than losing weight at a fast initial rate.

The authors analyzed data for 262 middle-aged obese women who took part in the Treatment of Obesity in Underserved Rural Settings (TOURS) trial.

These women followed a six-month lifestyle program encouraging them to reduce their calorie intake and increase their moderate intensity physical activity to achieve an average weight loss of 0.45kg per week.

They were then supported for a further year with an extended care program involving contact twice a month in the form of group sessions, telephone contact or newsletters.

Nackers and team split the women into three groups according to how much weight they lost in the first month of the intervention. Women in the FAST group lost over 0.68kg per week; those in the MODERATE group lost between 0.23 and 0.68kg per week; women in the SLOW group lost less than 0.23kg per week in that first month.

The authors then looked at the womens” weight loss at 6 and 18 months, as well as any weight regain.

They found that there were long-term advantages to fast initial weight loss.

Fast weight losers lost more weight overall, maintained their weight loss for longer and were not more likely to put weight back on than the more gradual weight losers.

In particular, women in the FAST group were five times more likely to achieve the clinically significant 10 percent weight loss at 18 months than those in the SLOW group and those in the MODERATE group were nearly three times more likely to achieve this milestone than women in the SLOW group.

“Our study provides further evidence that, within the context of lifestyle treatment, losing weight at a fast initial rate leads to greater short-term weight reductions, does not result in increased susceptibility to weight regain, and is associated with larger weight losses and overall long-term success in weight management. We suggest that, within lifestyle weight control programs, substantial efforts should be focused on promoting large rather than small behavioral changes during the initial weeks of treatment,” the authors said.

Their findings are published online in International Journal of Behavioural Medicine. (ANI)

Stressful jobs up women”s heart disease risk

Washington, May 6 (ANI): High-pressure jobs increase young women”s risk of heart disease, concludes a new study.

In the study, published in Occupational and Environmental Medicine, the research team assessed the impact of work pressure and degree of personal influence in the workplace on the heart health of 12,116 nurses, who were taking part in the Danish Nurse Cohort Study.

The nurses were all aged between 45 and 64 in 1993, when they were quizzed about their daily work pressures and personal influence, after which their health was then tracked for 15 years, using hospital records.

By 2008, 580 nurses had been admitted to hospital with ischaemic heart disease, which included 369 cases of angina and 138 heart attacks.

Nurses who indicated that their work pressures were a little too high were 25 percent more likely to have ischaemic heart disease as those who said their work pressures were manageable and appropriate.

But those who felt work pressures were much too high were almost 50 percent more likely to have ischaemic heart disease. After taking account of risk factors for heart disease, such as smoking and lifestyle, the risk fell to 35 percent, but still remained significant.

Poor job control in the workplace did not influence heart disease risk, while the amount of physical activity at work, which is known to affect health, had a small although significant impact.

When the findings were analysed by age, only the nurses under the age of 51 were at significant risk of heart disease.

In a separate analysis, the researchers looked at the impact of work pressures on the same group, but for just five years up to 1998.

Nurses who felt themselves to be moderately pressurised at work were 60 percent more likely to have ischaemic heart disease while those who said they faced excessive pressures at work were almost twice as likely to have it.

These findings held true even after taking account of other risk factors.

“It seems as if the effect of work pressure has a greater impact on younger nurses,” say the authors. “This is in agreement with findings from previous studies looking at age specific effects in both men and women.”

“The lower risk among the older nurses may be due to other risk factors that become relatively more important with increasing age. Furthermore, vulnerable individuals may have [already] left work,” they add. (ANI)

Exercise in youth to make old age bones stronger

Washington, May 4 (ANI): Physical activity when young increases bone density and size, which may mean a reduced risk of osteoporosis later in life, concludes a new study.

For the thesis from the Sahlgrenska Academy at the University of Gothenburg, Sweden, around 3,200 men had their bones examined and their exercise habits mapped. Of these, just over 2,300 18-year-olds were selected at random to have their heel bone examined by the researchers. The heel bone is particularly useful to study as it is directly impacted by exercise, being loaded with the full weight of the body.

“In this group, we found that those who actively did sports, and also those who used to do sports, had greater bone density than those who had never done sports,” explains Martin Nilsson, physiotherapist and doctoral student at the Institute of Medicine.

The researchers also looked at bone density and structure in the lower leg in around 360 19-year-old men who had previously done sports but had now stopped training. They found that men who had stopped training more than six years ago still had larger and thicker bones in the lower leg than those who had never done sports.

“This result is particularly important, because we know that a bone with a large circumference is more durable and resistant to fractures than a narrower bone,” says Nilsson.

The researchers also studied bone density throughout the body in around 500 randomly selected 75-year-old men. Those who had done competitive sports three or more times a week at some point between the ages of 10 and 30 had higher bone density in several parts of the body than those who had not.

The researchers have therefore established that there is a positive link between exercise while young and bone density and size. (ANI)

Rural to urban migration linked to increased obesity, diabetes risk in India

Washington, Apr 28 (ANI): People who migrate from rural to urban areas are more likely to become obese compared to individuals who do not move, a new study in India has found.

What’s more, this migration is a factor driving the diabetes epidemic in India, according to the study published this week in PLoS Medicine.

Like the rest of the world, the sub-continent too is experiencing a diabetes epidemic.

Diabetes has increased in urban areas of India from 5 percent to 15 percent between 1984 and 2004. As in other developing countries this is thought to result from increased consumption of saturated fats and sugar and reduced levels of physical activity.

The process of urbanization – migration from rural areas to towns and cities and the expansion of urban areas into the periphery – is linked to changes in diet and behaviour.

To examine how migration has impacted on obesity and diabetes in India, Shah Ebrahim and colleagues interviewed rural migrants working in urban factories.

To reach the conclusion, researchers recruited rural-urban migrants working in four factories in central, north and south India and the spouses of these workers if they were living in the same town. Each migrant worker or spouse asked a sibling still living in the rural area that they were originally from to join the study. Non-migrant factory workers and their siblings from urban areas were also recruited.

Each participant answered questions about their diet and physical activity and had their blood sugar and body mass index measured.

The results showed similar levels of obesity in urban and migrant men (41.9 percent and 37.8 percent respectively), in comparison with 19 percent of men in rural areas. Diabetes also stood at similar levels in urban and migrant men (13.5 percent in urban and 14.3 percent respectively), in comparison with 6.2 percent in rural men. These patterns of obesity and diabetes were similar in women.

The findings demonstrate that rural-urban migration in India is associated with rapid increases in obesity and diabetes and also indicated that changes in migrant behaviour – such as reduced physical activity – put them at similar risk to the urban population. (ANI)

More than 80 pct of disadvantaged preschoolers lack basic motor skills

Washington, April 27 (ANI): A large majority of disadvantaged preschoolers lack basic motor skills, a new American research has found.

According to the study, more than eight out of every ten disadvantaged preschoolers from two urban areas showed significant developmental delays in basic motor skills such as running, jumping, throwing, and catching.

That means that they are at risk of giving up on physical activities and becoming obese teenagers and adults, noted Jackie Goodway, lead author of the study and associate professor of physical activity and educational services at Ohio State University.

Goodway said: “These fundamental motor skills – running and catching and throwing and kicking – are the movement ABCs.

“If children don”t learn the ABCs, they can”t read. And if they don”t learn basic motor skills they won”t participate in sports or exercise. That”s the problem we may be facing with the children in this study.”

Goodway conducted the study with two of her former doctoral students – Leah Robinson, now at Auburn University and Heather Crowe, now at Towson University.

The researchers studied 469 preschool students enrolled in urban, state-funded programs serving disadvantaged youth.

Included were 275 children, mostly African American, from a Midwestern city and 194 children, mostly Hispanic, from a southwestern city.

The children were evaluated using a standardized test of motor skills.

They participated in tests of locomotor skills which included running, jumping, hopping, leaping, sliding and galloping.

They were also evaluated on object control skills through tests of throwing, catching, kicking, striking, dribbling and rolling.

Results showed that 86 percent of the children scored below the 30th percentile of children nationwide, which is considered developmentally delayed.

While girls and boys had similar scores on the locomotor skills, girls did significantly worse than boys on object control activities in which they used an object such as a ball or a bat.

Boys” average scores were at the 22nd percentile on object control, while girls” were at the 11th percentile.

In general, girls of every socioeconomic category perform more poorly than boys do in the object control tests, Goodway said.

However, disadvantaged girls do much worse than do other girls on these tests.

Goodway said the study”s findings may surprise people who believe children don”t need instruction in motor skills.

She said: “Most people, even many educators, believe that motor skills just naturally develop in children, but our study shows that”s clearly not true.

“Like any skill, there needs to be instruction, there needs to be practice, there needs to be feedback. That”s how children master these motor skills.”

The problem is that children from disadvantaged, urban neighbourhoods don”t get the opportunities that other children have to play outside in parks and backyards where they can learn how to run and jump and catch footballs and dribble basketballs.

Goodway said: “Their parks may be full of gangs, they don”t have backyards that are safe, they are often raised by single mothers who are working multiple jobs and don”t have time to supervise them outside.

“These children spend most of their time sitting in school and then going home and sitting in front of the TV.”

While the children in this study were mostly minorities, Goodway said the results would apply to any children from disadvantaged backgrounds.

She said: “Ethnicity doesn”t matter. It”s about poverty.”

The study has been published in the journal Research Quarterly for Exercise and Sport. (ANI)

Have more sex to avoid illness, Brazilians told

London, Apr 27 (ANI): Engage regularly in physical exercise, and particularly in sexual intercourse, to fight off chronic illness, Brazil’s health minister has advised the general public.

“People need to be active. A weekend football game must not be the only physical activity for a Brazilian. Adults need to do exercise: walk, dance and have safe sex,” said Jose Gomes Temporao.

It was while launching a campaign to prevent high blood pressure, that the minister gave the advice, reports The Telegraph.

Temporao then defended his promotion of sexual intercourse to journalists, according to the G1 news website.

“It”s not a joke. It”s serious. Having regular physical exercises also means sex, always with protection of course,” he said.

“Dancing, having sex, keeping weight under control, changing dietary habits, doing physical exercise” all help keep blood pressure down, he said. (ANI)

Study debunks smoking makes you slimmer myth

A new research debunks the myth that smoking makes people slimmer.

According to a four-year analysis by researchers at the University of Navarra, people who never smoked put on less weight than active smokers or those who stop smoking.

The researchers have evaluated the link between the two cardiovascular risk factors: the ‘nicotine habit’ and the increase in weight when smokers stop the habit and when they continue smoking.

The results ‘are crucial for considering prevention programmes,’ says Francisco Javier Basterra-Gortari, main author of the study and researcher at UNAV.

The data, resulting from an analysis of 7565 people over 50 months, is based on age, sex, initial body mass index and lifestyles (sedentarism, changes in physical activity, energy/fibre intake, snacks between meals and consumption of fizzy drinks, fast food and alcohol).

Weight gain in people who stopped smoking during the study was higher the more cigarettes they smoked a day when the investigation began. Those who continued smoking also gained more weight during this period than the non-smokers.

The authors confirm that nicotine addiction is not an effective way of preventing obesity.

“In fact the increase is demonstrated, especially in ex-smokers and in smokers who continue,” says Basterra-Gortari.

The association between being overweight and nicotine addiction is especially harmful for cardiovascular health. Therefore, abandoning the nicotine habit has been linked to a decrease in the risk of cardiovascular illnesses and cancer.

However, experts argue that weight gain after stopping smoking is, often, a reason for not quitting the nicotine addiction, especially among women.

Most of the investigations that have studied this link have observed that, although there is an increase in weight after stopping smoking, there are notable variations in weight gain.

The study has been published in the Revista Espanola de Cardiologia.

Exercise without leaving your desk

Tasmania’s public servants could soon be getting their 30 minutes of daily exercise without leaving their desks.

University of Tasmania researchers have teamed up with the police department to trial a new computer program that prompts desk workers to do short bursts of exercise throughout the day.

Lecturer Scott Pedersen says many office workers are sitting for up to eight hours a day and are missing out on incidental exercise.

“The desk chair is what’s really hurting everyone,” he said.

” It’s people doing an amount of sitting – it doesn’t matter how much excerise they do during the day, it’s that sitting for eight hours a day, so we’re trying to put physical activity back into the workplace.

“What we’re thinking is the whole idea of the Tasmanian push to get your 30 minutes a day, it doesn’t have to be 30 minutes continuous, that’s what the literature’s been showing is that it can be broken up into short bursts all over the day so what better time than during your eight hour work day.”

Office worker Miranda Walsh admits some colleagues may be tempted to hit the ignore button.

“There’s probably a couple but I’m sure once they get started they’ll get used to it,” she said.

“It’s really easy.”

If the trial’s successful the program will be introduced throughout the state public service.

Oz mums struggling to serve healthy meals to their kids

Melbourne, Mar 29 (ANI): A survey has found that more than half of Australian mothers are struggling to serve healthy meals to their children every day, and many are worrying that their kids are too inactive.

The survey of more than 16,000 mums, which comes amid growing concern about childhood obesity, has revealed widespread concern about their children”s diet and exercise levels.

It revealed that 36 percent of mothers feared their children weren”t getting enough physical activity, and that 43 percent said they tried to give their kids balanced meals, but were finding it difficult.

Another 10 per cent of mothers were either confused about what to serve up or couldn”t get their children to eat the healthy meals they prepared.

“Mealtimes can be a challenge,” the Courier Mail quoted Louisa Begley, a Brisbane mum with three school-age children including one fussy eater and another who wants a lot of variety in the weekly menu, as saying.

“Just finding meals that are balanced and that all three children are going to enjoy is really tough,” she said.

With her own busy home-based consultancy, a husband whose career involves lots of travel, and the children”s after-school activities to fit in, Begley said lack of time was another complicating factor.

“If I”m organised and plan at the start of the week, I can manage. But if something happens on the weekend and we don”t get our weekly shop in, that”s when it”s difficult,” she stated.

Begley is looking forward to the release of a new book of healthy meals for families, the fourth in a series of cookbooks produced jointly by dieticians at the Australian Institute of Sport and Nestle.

One author of Survival for the Active Family, AIS dietician Greg Cox, said time-poor families needed more quick but nutritious meal options.

“Even people who might know what they should be providing for their kids, they often run out of time,” he said.

“And people tend to grab (pre-packaged foods) because they”re quick and easy, as opposed to developing a meal from scratch,” he revealed.

Dietitians Association of Australia spokeswoman Clare Evangalista agreed time pressure was the biggest obstacle for parents struggling to provide healthy meals for the family, but they might also be intimidated by the rash of television cooking programs.

“That can make it hard for mums, because they feel like they”re supposed to be presenting three-course, five-star dinners to their families every night,” she said.

“It adds to the pressure on mothers, but exotic meals are not necessarily any healthier than the everyday staples,” she added.

The Australian Institute of Sport, and food manufacturer Nestle has released the findings. (ANI)

Group training can boost happiness

London, Sept 16 (ANI): Science has proved it: People do better as a team. Researchers from Oxford University have found that team players can tolerate twice as much pain as those who work alone.

The study, which carried out tests on 12 rowers after a vigorous workout in a virtual boat, suggests that exercising together appears to increase the level of the feel-good endorphin hormones naturally released during physical exertion.

Writing in Biology Letters, the authors speculate these hormones may underpin an array of communal activities.

Physical exertion releases endorphins and that these are responsible for the sometimes euphoric sensations experienced after exercising are facts already known.

However, in the new study, researchers from Oxford University’s Institute of Cognitive and Evolutionary Anthropology found this response was heightened by the synergistic effect of rowing together.

After 45 minutes of either rowing separately or in a team of six, the researchers measured their pain threshold by how long they could tolerate an inflated blood pressure cuff on the arm, reports The BBC.xercise increased both groups’ ability to tolerate pain, but the difference was significantly more pronounced among the team rowers.

This, they said, was a measure of an increased endorphin release.

“The results suggest that endorphin release is significantly greater in group training than in individual training even when power output, or physical exertion, remains constant,” said lead author Emma Cohen.

“The exact features of group activity that generate this effect are unknown, but this study contributes to a growing body of evidence suggesting that synchronised, coordinated physical activity may be responsible,” the expert added. (ANI)

Kids ‘more likely to develop diabetes in winters’

London, Aug 24 (ANI): Kids under the age of 15 are at a higher risk of developing type 1 diabetes in winters, finds a new study.

Researchers from National Institute for Health and Welfare have found that this winter trend was more prevalent in boys as well as in both sexes from the older age groups 5 to 14 years old.

Unlike Type 2 diabetes, which develops in middle age, the Type 1 form typically arises in childhood and requires lifelong supplements of insulin.

The condition develops when the insulin-producing cells in the pancreas have been destroyed.

It is not known for sure why these cells have been damaged but the most likely cause is an abnormal reaction of the body to the cells. This may be triggered by a viral or other infection.

“Numerous reasons have been suggested for the apparent seasonality of the onset of Type 1 diabetes,” Times Online quoted Elena Moltchanova, who led the study, as saying.

“These include a seasonal variation in people’s levels of blood glucose and insulin, seasonal viral infections, the fact that young people tend to eat more and do less physical activity during winter months and, similarly, that summer holidays provide a rest from school stress and more opportunity to play outdoors,” Moltchanova added.

Contrary to the previous study results, Victoria King, research manager at the charity Diabetes UK said, “this larger study shows a stronger correlation which is interesting, especially as we still don’t know exactly why Type 1 diabetes develops.

“Investigating why we might be seeing this pattern could tell us more about what may be triggering the development of Type 1 diabetes.”(ANI)

Brit pupils told: ‘An orgasm a day keeps the doctor away’

London, July 12 (ANI): British school pupils are being advised that they have a “right” to enjoy a good sex life and that having intercourse on a regular basis can be good for their cardiovascular health.

A National Health Service leaflet about the benefits of sexual pleasure has been circulated to parents, teachers and youth workers.

Authors of the document argue too much emphasis was laid on the need for “safe sex” and relationships while the main reason to have sex, that is, for enjoyment, has been pushed back, reports Times Online.

The leaflet, entitled Pleasure and drawn up by NHS Sheffield, reads: “an orgasm a day keeps the doctor away.”

It also says: “Health promotion experts advocate five portions of fruit and veg a day and 30 minutes’ physical activity three times a week. What about sex or masturbation twice a week?”

Steve Slack, director of the Centre for HIV and Sexual Health at NHS Sheffield, said that teenagers have as much right as an adult to an enjoyable sex life.

Slack, one of the authors, also said the move could help delay teenage sex.

But Anthony Seldon, master of Wellington College, Berkshire, who introduced classes in emotional wellbeing, appeared less convinced, saying the approach was “deplorable”. (ANI)

Kids’ physical activity improves when parents back vigorous team sports

Washington, July 6 (ANI): A new study has shown that parents who value strenuous team sports are more likely to influence their kids to join a team or at least participate in some kind of exercise, and spend less time in front of the TV or computer.

For the study, researchers from Baylor College of Medicine and Duke University examined a sample of 681 parents of 433 fourth- and fifth-graders from 12 schools in Houston.

They found that those parents who conveyed the importance of high-intensity team sports to their children had more active children.

Both the boys and girls watched less TV and spent less time on their computers.

However, the study also found that endorsing all types of exercise – both team sports and individual sports – increased boys’ activity levels but not girls’.

“The difference between activity levels in the girls and boys had to do with the parents’ attitudes toward the types of activities. Parents encouraged sons to partake in vigorous- and moderate-intensity team and individual sports, and vigorous-intensity home chores, such as heavy yard work, more than they encouraged these activities for their daughters,” said lead author Cheryl Braselton Anderson, PhD.

“There still is gender bias on encouraging boys to participate in certain sports and strenuous activities more than girls,” Anderson added.

The findings appear in the July issue of Health Psychology, published by the American Psychological Association. (ANI)

Girl scout meetings boost physical activity, promote healthy lifestyle

Washington, June 25 (ANI): Organizations like Girl Scouts provide an ideal setting for girls to boost their physical activity and to promote a healthy lifestyle, according to a Kansas State University researcher.

Richard Rosenkranz, assistant professor in human nutrition at K-State, did a study using interventions with Girl Scout troops.

He trained group leaders to instruct exercise sessions and promote healthful eating, which led the girls to learn about a healthy lifestyle and increased their participation in exercise activities.

“We were striving to get the girls and parents to spend some of their leisure time together being active and taking steps together for fun and health,” he said.

For the two-year study, Rosenkranz worked with 10- and 11-year-old girls who were members of Girl Scout troops in Manhattan and the surrounding area.

The study involved nine troops, with five of the troops receiving an intervention.

“What we saw in the control troops was an environment where girls were sedentary for the vast majority of time at the meeting, combined with snacks that were less than health-promoting. This is just one part of a girl’s weekly or bi-weekly experience, but it offers the chance to provide an opportunity and a message for health promotion,” he said.

Rosenkranz trained the group leaders as part of the intervention.

They learned about the background of intervention activities, which included nutrition, family meals, physical activity and family connection.

They were also taught the expectations of being role models and providing a healthful environment at Girl Scout meetings, as well as new physically active games for the girls.

The intervention focused on having the girls participate in walking, dancing, active games and yoga.

“The intervention was focused on physical activities that could be done in or around the home, without special equipment, ideally involving the parents,” said Rosenkranz.

He said the girls in the intervention troops were less sedentary than those not in the interventions.

In addition, the girls involved in the intervention performed higher levels of both moderate-intensity and moderate-to-vigorous intensity exercise during troop meetings.

The study was presented at the American College of Sports Medicine’s Annual Meeting in Seattle. (ANI)

Eat oily fish to keep brain healthy

London, May 27 (IANS) Eating oily fish, rich in vitamin D, may be vital in keeping your brain healthy as you age, according to a new study.

University of Manchester scientists and other researchers have found that higher levels of vitamin D, synthesised in the skin following sun exposure, is also found in oily fish.

The study assessed the cognitive performance of more than 3,000 men aged 40 to 79 years at eight test centres in Europe.

It was found that men with higher levels of vitamin D performed consistently better in a simple and sensitive neuro-psychological test that assesses an individual’s attention and speed of information processing.

“Previous studies exploring the relationship between vitamin D and cognitive performance in adults have produced inconsistent findings. But we observed a significant, independent association between a slower information processing speed and lower levels of vitamin D,” said study author David Lee of Manchester’s School of Translational Medicine.

“The main strengths of our study are that it is based on a large population sample and took into account potential interfering factors, such as depression, season and levels of physical activity,” Lee said.

“Interestingly, the association between increased vitamin D and faster information processing was more significant in men aged over 60 years, although the biological reasons for this remain unclear,” he added.

These findings were published in the Journal of Neurology, Neurosurgery and Psychiatry.

New Walk n’ Play application lets iPhones users have fun while burning calories

Washington, May 24 (ANI): Your iPhone can now count how many calories you have burnt in a given day, thanks to a new Walk n’ Play application.

The application, developed by researchers at the University of Houston, is available for free downloads from Apple’s ‘App Store’.

It allows users to have fun while burning calories: players can keep track of their physical activity through their iPhones.

The application debuted in March, had an improved version launched this week, and currently has 3,000 users to date.

Walk n’ Play allows players to compete in real time against another iPhone user or against a simulator, and watch the calories burn off as they go about their everyday walking.

“You just keep the phone attached to your waistband or carry in your pocket as you normally would, and it records every little motion you do – from walking to climbing stairs – and translates it into calories burned. The game operates on a 24-hour cycle and tallies everything up daily,” said Ioannis Pavlidis, who led the project leading to this application.

Pavlidis further said that the game has an advantage over treadmills, which measure a user’s activity confined in space and time.

He says that Walk n’ Play allows using the world as a treadmill, typically giving a more accurate calorie count.

Pavlidis also likens it to a form of social networking, motivating users to walk and putting them in contact with others.

“Modern conveniences have changed our way of life. The basic idea behind the application we’ve developed is for people to get motivated and back to living more active lifestyles,” the researcher said.

He hopes that novel application will encourage people to get into the habit of walking more during the day by perhaps taking a walk during breaks at work, parking in a spot that’s a little farther from the office, using the stairs instead of the elevator, and developing a habit of walking after meals. (ANI)

Fish boosts brain power in middle aged men

Washington, May 21 (ANI): Increased levels of vitamin D – synthesised in the skin following sun exposure and found in certain foods such as oily fish – are linked to improved cognitive function in middle-aged and older men, says a new study.

University of Manchester scientists in collaboration with colleagues from other European centres compared the cognitive performance of more than 3,000 men aged 40 to 79 years at eight test centres across Europe.

The study has been published in the Journal of Neurology, Neurosurgery and Psychiatry.

In the study, researchers found that men with higher levels of vitamin D performed consistently better in a simple and sensitive neuropsychological test that assesses an individual’s attention and speed of information processing.

“Previous studies exploring the relationship between vitamin D and cognitive performance in adults have produced inconsistent findings but we observed a significant, independent association between a slower information processing speed and lower levels of vitamin D,” said lead author Dr David Lee, in Manchester’s School of Translational Medicine.

“The main strengths of our study are that it is based on a large population sample and took into account potential interfering factors, such as depression, season and levels of physical activity.

“Interestingly, the association between increased vitamin D and faster information processing was more significant in men aged over 60 years, although the biological reasons for this remain unclear.

“The positive effects vitamin D appears to have on the brain need to be explored further but certainly raise questions about its potential benefit for minimising ageing-related declines in cognitive performance,” the expert added. (ANI)

Majority of adults are inactive over their lifespan, finds Canadian study

Washington, May 13 (ANI): Majority of adults are inactive over their lifespan and don’t exercise enough during their leisure time, a 22-year study has found.

After following a group of more than 800 healthy Canadians between 1981 and 2003, the researchers found that almost 56 percent were consistently inactive and only 12 percent of participants remained active over the two decades.

“Women and older participants, compared to men or their younger peers, were less likely to follow a consistently active lifestyle. And participants with less education and lower household income were also less likely to be active,” said lead author Tracie A. Barnett, a professor at the University of Montreal.

However, researchers also found that 25 percent of Canadians increased their levels of physical activity over time – an improvement that was observed in all socio-economic sub-groups.

The research group recommends continued efforts to increase physical activity among the overall population, as well as targeted programs that can encourage more vulnerable groups to keep moving.

What’s more, the scientists stressed that health promotion programs must ensure that health inequalities experienced by socially disadvantaged groups do not worsen.

Dr. Lise Gauvin, of the University of Montreal Hospital Centre, said: “There is a need for continued and targeted health promotion efforts, ideally during childhood and adolescence but also in adulthood, to ensure that Canadians remain physically active across the lifespan.”

“Because so few adults reverse behaviours acquired in early adulthood and because many active youths become sedentary adults, programs must target the entire population,” Gauvin added.

The study is published in the International Journal of Behavioral Nutrition and Physical Activity. (ANI)