Regular exercise can keep lifestyle diseases away

April 5, 2015

Apr 5: Cardiovascular disease, diabetes, and osteoporosis - Indians are facing an unhealthy future burdened with a slew of lifestyle diseases. But instead of expensive medication and therapy, the cure lies in making exercise a compulsory part of everyday life, health experts say.

"Indians are increasingly leading a sedentary and machine-dependent life, which may seem comfortable but has extremely adverse effects on health," T.S. Kler, Head of the Department Cardiology, Fortis Escorts Heart Institute and Research Centre said.

Regular exerciseKler said with increasingly hectic lifestyles, most Indians in urban areas nowadays do not walk to the neighbourhood store but rather order groceries on phone for home delivery or drive down.

"We do not climb stairs any more, with lifts being omnipresent. Riding bicycles to work or to school is not cool in urban areas any more. Forget adults, this conditioning begins with children who prefer to stay indoors watching television or playing video games rather than spending time in the playground," he added.

"We all know that cardiovascular diseases are today a major health concern in India. They are the single largest leading cause of deaths in the country, and relatively younger people are today afflicted by coronary artery disease," the noted cardiologist said.

Various surveys done in India have shown that the incidence of coronary heart disease is 8-10 percent in urban areas and 5-6 percent in rural areas.

Kler said regular exercise can help prevent risk factors for cardiovascular diseases such as hypertension and type II diabetes. It also keeps the weight in check.

"Incidences of coronary artery disease can be reduced substantially if the entire Indian population religiously takes to physical exercise. Even 30 minutes of moderate exercise daily can be immensely beneficial. We need a national focus on this less-talked about subject," Kler said.

According to Rajeev K. Sharma, senior consultant orthopedics and joint replacement surgery, Indraprastha Apollo Hospital: "Adequate levels of physical activity decreases the risk of a hip or vertebral fracture and helps control weight. In fact, exercise is very crucial for maintaining good bone health, besides adequate intake of calcium."

"WHO estimates that globally, one in four adults is not active enough while more than 80 percent of the world's adolescent population is insufficiently physically active. This is a dreadful scenario as all these inactive people are making themselves vulnerable to several health issues," he said.

Osteoporosis-related injuries such as vertebrae fractures not only cause pain but also degrade the quality of life, curtail movement and increase dependence. Since the bone is a living tissue, it becomes stronger when subjected to exercise, Sharma said, adding that loss of bone mineral density that begins during the 30s can be curtailed by exercising regularly.

"People who exercise are found to have greater peak bone mass as compared to people who do not exercise."

According to the International Osteoporosis Foundation, the malaise annually causes more than 8.9 million fractures around the globe.

"Though exercising can, to a large extent, help in building strong bones, there is a general lack of an exercise culture in India. This needs to change. Schools, colleges and other institutions should take the lead in nurturing an exercising culture."

Harvinder Singh Chhabra, medical director and chief of spine services at Indian Spinal Injuries Centre, Vasant Kunj, said Indians generally do not realize the importance of exercising unless hit by an ailment.

"Many patients start walking regularly after back pain or osteoarthritis has already set in their bodies. We tell them they could have delayed it by being active all their lives," he added.

According to Chhabra, in the West, there is a lot of focus on physical activity and people are moving away from sedentary ways of life. "They are junking television and going for cycling, running, or adventure sports such as rock climbing. This shift is yet to take place in India."

To make exercise a national culture, apart from awareness, many enabling policy measures are also needed.

"In urban areas, several environmental factors discourage people from leading more active lives even if they want to. Lack of public spaces such as parks and grounds, safety issues on the roads, pollution and irksome traffic do not allow many people to step out of homes to run or walk. This needs to change," he said.

The latter half of the 20th century has brought substantial progress in disease control due to expansion of health infrastructure. With food and nutritional consumption also improving for a vast majority of population, life expectancy in India has gone up over the years. Experts say that deaths due to communicable diseases have decreased while those from non-communicable diseases (NCDs) have risen.

NCDs at present account for 53 percent of all deaths and 44 percent of disability adjusted life-years lost. Projections indicate a further increase to 67 percent of all deaths by 2030. Cardiovascular disease is the major contributor to this burden, attributable to 52 percent of NCD-associated deaths and 29 percent of total deaths.

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Agencies
January 12,2020

Washington D.C., Jan 12: Disruption in one night's sleep can lead to getting Alzheimer's disease, a recent study has stated.

The interruption in the sound sleep for a single night aggravates the level of tau protein in any young male's body, thus gives rise to the chances of developing the disease.

According to CNN, the report was published on Wednesday in neurology, the medical journal of the American Academy of Neurology.

"Our study focuses on the fact that even in young, healthy individuals, missing one night of sleep increases the level of tau in blood suggesting that over time, such sleep deprivation could possibly have detrimental effects," says study author Dr Jonathan Cedernaes, a neurologist at Uppsala University in Sweden.

As defined by the Alzheimer's Association, tau is the name of a protein that helps in stabilizing the internal structure of the brain's nerve cells. An abnormal build-up of tau protein in the body can end up in causing interior cells to fall apart and eventually developing Alzheimer's.

"When you get more of that deep sleep and you get the REM sleep in the normal amounts, that improves clearance of abnormal proteins which we think is good," said Mayo Clinic neurologist Dr Donn Dexter, not the study author but a fellow of the American Academy of Neurology.

Earlier studies have also shown that getting deprived of sleep can allow higher tau development and accumulation. Thus that poor sleep can hasten the development of cognitive issues.

Researchers caution that the study is small and inconclusive, and acknowledged they were not able to determine what the increased levels might mean.

"This study raises more questions than answers," agreed Dexter on a concluding note, sharing, "What this is telling us is that we have to dig more deeply. Despite something we do for a third of our lives, we know so little about sleep and we're learning every day, particularly when it comes to sleep and dementia."

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Agencies
April 17,2020

Washington DC, Apr 17: In recent research, scientists have linked the emotional, social and psychiatric problems in children and adolescents with higher levels of genetic vulnerability for adult depression. The study implies that the genetics passed from parents may be linked with psychiatric problems in children and adolescents and may also leading to depression in adults.

University of Queensland scientists made the finding while analysing the genetic data of more than 42,000 children and adolescents from seven cohorts across Finland, the Netherlands, Norway, Sweden and the UK.

Professor Christel Middeldorp said that researchers have also found a link with a higher genetic vulnerability for insomnia, neuroticism and body mass index.

"By contrast, study participants with higher genetic scores for educational attainment and emotional well-being were found to have reduced childhood problems," Professor Middeldorp said.

"We calculated a person's level of genetic vulnerability by adding up the number of risk genes they had for a specific disorder or trait and then made adjustments based on the level of importance of each gene We found the relationship was mostly similar across ages," Middeldorp added.

The results indicate there are shared genetic factors that affect a range of psychiatric and related traits across a person's lifespan.

Middeldorp said that around 50 per cent of children and adolescents with psychiatric problems, such as attention deficit hyperactivity disorder (ADHD), continue to experience mental disorders as adults, and are at risk of disengaging with their school community among other social and emotional problems.

"Our findings are important as they suggest this continuity between childhood and adult traits is partly explained by genetic risk," the Professor said.

"Individuals at risk of being affected should be the focus of attention and targeted treatment," Middeldorp continued.

"Although the genetic vulnerability is not accurate enough at this stage to make individual predictions about how a person's symptoms will develop over time, it may become so in the future, in combination with other risk factors. And, this may support precision medicine by providing targeted treatments to children at the highest risk of persistent emotional and social problems," Middeldorp added.

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Agencies
July 7,2020

The World Health Organization (WHO) is reviewing a report that suggested its advice on the novel coronavirus needs updating after some scientists told the New York Times there was evidence the virus could be spread by tiny particles in the air.

The WHO says the Covid-19 disease spreads primarily through small droplets, which are expelled from the nose and mouth when an infected person breaths them out in coughs, sneezes, speech or laughter and quickly sink to the ground.

In an open letter to the Geneva-based agency, 239 scientists in 32 countries outlined the evidence they say shows that smaller exhaled particles can infect people who inhale them, the newspaper said on Saturday.

Because those smaller particles can linger in the air longer, the scientists - who plan to publish their findings in a scientific journal this week - are urging WHO to update its guidance, the Times said.

"We are aware of the article and are reviewing its contents with our technical experts," WHO spokesman Tarik Jasarevic said in an email reply on Monday to a Reuters request for comment.

The extent to which the coronavirus can be spread by the so-called airborne or aerosol route - as opposed to by larger droplets in coughs and sneezes - remains disputed.

Any change in the WHO's assessment of the risk of transmission could affect its current advice on keeping one-metre physical distancing. Governments, which also rely on the agency for guidance policy, may also have to adjust public health measures aimed at curbing the spread of the virus.

"Especially in the last couple of months, we have been stating several times that we consider airborne transmission as possible but certainly not supported by solid or even clear evidence," Benedetta Allegranzi, the WHO's technical lead for infection prevention and control, was quoted as saying in the New York Times.

WHO guidance to health workers, dated June 29, says that SARS-CoV-2, the virus that causes Covid-19, is primarily transmitted between people through respiratory droplets and on surfaces.

But airborne transmission via smaller particles is possible in some circumstances, such as when performing intubation and aerosol-generating procedures, it says.

Medical workers performing such procedures should wear heavy-duty N95 respiratory masks and other protective equipment in an adequately ventilated room, the WHO says.

Officials at South Korea's Centers for Disease Control said on Monday they were continuing to discuss various issues about Covid-19, including the possible airborne transmission. They said more investigations and evidence were needed.

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