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Apr 07
Munching on peanuts can help ward off foodborne illnesses
Consuming peanuts may help prevent foodborne illnesses caused by intestinal bacterial pathogens, claims a new study.

The study, published by the Institute of Food Technologists (IFT), found that white peanut kernel assists in improving human gut microflora as well as reducing foodborne bacterial pathogens such as Enterohaemorrhagic E. coli (EHEC) and Salmonella.

In the peanut shell, there are two major portions, brown thin skin and white kernel. In the study, researchers from University of Maryland found that the kernel or kernel powder (also called peanut flour) has prebiotic-like effects. The findings of this study suggest the idea that people with vulnerable gut conditions may benefit from consuming peanut white kernel by stimulating growth of probiotics.

Further research is needed to assess whether the stimulation of probiotic growth with peanut kernel could reduce inflammation and colitis, and control gastrointestinal infections.

The study is published in the Journal of Food Science.

Apr 06
Regular exercise can keep lifestyle diseases away
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, told IANS.

Kler 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.

Apr 04
An egg a day may keep diabetes away
If you love eggs, there is good news for you. Egg consumption could reduce the risk of Type-2 diabetes, says a new research.

The study, published in American Journal of Clinical Nutrition, found that men who ate approximately four eggs per week had a 37 percent lower risk of Type-2 diabetes than men who only ate one egg a week.

Type-2 diabetes is becoming increasingly widespread throughout the world.

Researchers at the University of Eastern Finland assessed dietary habits of 2,332 men aged between 42 and 60 years during 1984-1989.

During a follow-up of 19 years, 432 men were diagnosed with Type-2 diabetes.

The study found that egg consumption was associated with a lower risk of Type-2 diabetes as well as with lower blood glucose levels.

This association persisted even after possible confounding factors such as physical activity, body mass index, smoking and consumption of fruits and vegetables were taken into consideration.

Consumption of more than four eggs did not bring any significant additional benefits.

In addition to cholesterol, eggs contain many beneficial nutrients that can have an effect on, for example, glucose metabolism and low-grade inflammation, and thus lower the risk of Type-2 diabetes.

Apr 03
Could caffeine have the potential to beat Alzheimer's?
Your coffee may do more than just waking you up in the morning, as in a new study, scientists are trying to see caffeine as a potential cure for Alzheimer's disease.

The latest evidence linking beta amyloid protein to Alzheimer's disease and explores the relationship between caffeine and beta amyloid.

Abhishek Mohan, BS, Old Dominion University (Norfolk, VA), and coauthors identified the potential opportunities for using caffeine to reduce beta amyloid levels as a means of preventing, treating, and slowing the progression of Alzheimer's disease.

Patricia A. Broderick, PhD, editor-in-chief of the journal featuring the article, said that "to say that strategizing medicines to treat Alzheimer's disorders is important is an understatement. Moreover, to say that caffeine is just an ordinary staple in our lives, whether caffeine is part of coffee or a chocolate bar, is also an understatement. Thus, what Dr. Mohan has published herein is elegant in its simplicity; his work is critically on target."

The article is published in the Journal of Caffeine Research.

Apr 02
One serving of spinach a day could keep mental decline away by 11 years
Including veggies like spinach and kale can keep your cognitive functions from declining by 11 years.

Rush University in Chicago researchers found that adults who ate the leafy vegetables suffered considerably less cognitive decline than those who didn't, the Independent reported.

The findings were regardless of other factors such as education, exercise and family medical history.

They analyzed 950 people with an average age of 81 years, who participated in 19 different tests to assess their mental function, and found that participants who ate greens once or twice a day halted their mental decline by 11 years.

Lead study author Martha Clare Morris said the brain benefits associated with dark leafy greens likely stemmed from key nutrients such as vitamin K.

She added that since mental decline was linked to Alzheimer's disease and dementias, consumption of green leafy vegetables could be key to protect the brain.

The study was presented at the Experimental Biology Conference in Boston.

Apr 01
High levels of pesticide residues in fruits, vegetables can harm semen quality
Make sure that the food you eat is pesticide free, as new study has claimed that fruits and vegetables containing higher levels of pesticide residues can harm semen quality.

According to a new study by researchers at Harvard T.H. Chan School of Public Health, men who ate strawberries, spinach, and peppers with high pesticide levels had lower sperm count and a lower percentage of normal sperm than those who ate produce with lower residue levels.

It is the first study to look at the connection between exposure to pesticide residues from fruits and vegetables and semen quality.

The researchers used data from 155 men enrolled in the Environment and Reproductive Health (EARTH) study, an ongoing National Institute of Environmental Health Sciences-funded study at a fertility center in Boston. Data included 338 semen samples provided during 2007-2012 and validated survey information about participants' diets.

The results showed that men who ate greater amounts of fruits and vegetables with higher levels of pesticide residue-more than 1.5 servings per day-had 49 percent lower sperm count and 32 percent lower percentage of normal sperm than men who ate the least amounts (less than 0.5 serving per day). They also had a lower sperm count, lower ejaculate volume, and lower percentage of normal sperm.

The men who ate the most fruits and vegetables with low-to-moderate levels of pesticide residue had a higher percentage of normal sperm compared with those who ate less fruits and vegetables with low-to-moderate levels.

Study's senior author Jorge Chavarro said that the findings should not discourage the consumption of fruit and vegetables in general, as they found that consuming more fruits and vegetables with low pesticide residues was beneficial.

The study is published in the journal Human Reproduction.

Mar 31
An apple a day may not keep the doctor away, study says
An apple a day doesn't necessarily keep the doctor away. That's according to proverb-busting research that found daily apple eaters had just as many doctor visits as those who ate fewer or no apples.

The findings don't mean apples aren't good for you but they do underscore that it takes more than just one kind of food to make a healthy diet and avoid illness.

About one-third of the adults studied said they had no more than one doctor visit in the previous year; the remainder reported at least two visits.

A preliminary analysis found apple eaters had slightly fewer visits than apple avoiders, those who ate less than one daily or no apples. But that difference disappeared when the researchers considered weight, race, education, health insurance and other factors that can influence frequency of medical visits.

Mar 30
Mix lettuce varieties to gain maximum health benefits
Mixing lettuce varieties could help provide protection against the chain reactions of free radicals, molecules that can cause cell damage and generate various diseases, suggests a study.

The findings, published in the Journal of Agricultural and Food Chemistry, said that mixing lettuce, one of the indispensable vegetables in the Mediterranean diet, could be a good idea as not all lettuce varieties have the same antioxidant effect.

The researchers from the University of the Basque Country (UPV/EHU) in Spain and the University of Pisa in Italy analysed the compounds of three lettuce varieties: the green-leaf 'Batavia', the semi-red-leaf 'Marvel of Four Seasons', and the red-leaf 'Oak Leaf'.

Using Electron Paramagnetic Resonance (EPR) techniques, they were able to observe the behaviour of the speed (kinetics) of the antioxidant compounds of each variety.

The results showed that the green-leaf lettuce contains water-soluble, antioxidant compounds that act at a slow and intermediate speed, the red-leaf one has compounds with intermediate and rapid kinetics, and the semi-red-leaf one has three kinds of compounds, with a rapid, intermediate and slow speed.

"The fact that there are compounds that act at different speeds does not mean that some are better or worse than others," said Usue Perez-Lopez, researcher at UPV/EHU.

It is also important that our bodies should acquire foods with antioxidants that have slower kinetics so that the latter will continue to act over a longer period of time.

"That is why people say that it is very interesting to mix different types of lettuce because they have different, complementary characteristics," Perez-Lopez added.

Free radicals harm our body by causing, in the best of cases, ageing and, in the worse, serious diseases.

Lettuce is rich in antioxidants, as it contains compounds like phenolic acids, flavonoids, anthocyanins, and vitamins A and C, among other things, the researchers said.

Mar 28
Older people should keep moving to stay moving
A new study has revealed that exercise may help keep seniors moving longer, despite old age brain decline.

Many older people have small areas of damage in their brains seen on magnetic resonance imaging (MRI) as white matter hyperintensities. Higher levels of this damage have been linked to more problems with movement, such as difficulty walking, but this new study found that people who were the most physically active did not have a drop-off in their movement abilities, even when they had high levels of brain damage.

Author Debra A. Fleischman of Rush University Medical Center in Chicago said that these results underscore the importance of efforts to encourage a more active lifestyle in older people to prevent movement problems, which is a major public health challenge, adding that physical activity may create a 'reserve' that protects motor abilities against the effects of age-related brain damage.

Fleischman noted that the study does not determine whether physical activity causes people to preserve their movement abilities; it only shows the association.

The study is published in the online issue of Neurology, the medical journal of the American Academy of Neurology.

Mar 27
Women urged to exercise more to prevent heart disease
A new survey has suggested that women should do regular exercise as physical inactivity is the biggest risk factor for heart disease in women over the age of 30.

The Heart Foundation survey on the exercise habits, found that 24 per cent of male students did 60 minutes or more of exercise a day, compared to 11 per cent of females, News.com.au reported.

Trevor Shilton, Heart Foundation spokesman said that women who exercise enough to cause sweating or a faster heart beat for 30 minutes five times a week, were up to 35 per cent less likely to suffer from heart disease, strokes or blood clots.

Shilton added that there were certain times in a woman's life like in late teens and after having children when she went through more at risk of cutting out exercise due to study and work pressures.

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