TopNews

Researchers have noticed that people who lived high in Argentina's Andes Mountains for hundreds of years have been exposed to high levels of arsenic, which naturally occurs in their water.

Arsenic is a deadly chemical which can cause cancer and is mainly deadly for children and obstructs people's ability to reproduce.

During the study, published in the journal Molecular Biology and Evolution, researchers found that different people had different ability to metabolize and get rid of this fatal chemical.

In order to figure out the reason behind the variation, the researchers analyzed the genes which are a part of this detoxification process.

A new study has shown positive effects of changes made to government-subsidized meals by the Obama administration to get schoolchildren eat more fruits. The Rudd Center for Food Policy and Obesity at the University of Connecticut conducted the study, showing a surge in the percentage of children eating fruits on cafeteria to 66% from 54%, since changes went into effect in 2012.

The study also showed that children were not wasting as much food as they were used to before the rules, which is another significant achievement.

Marlene B. Schwartz, the study's lead author and the director of the Rudd Center, said the study has highlighted the importance of nutrition standards for the National School Lunch Program to ensure healthy eating habits among students.

Bristol-Myers Squibb's drug Opdivo (nivolumab) has been approved by US Food and Drug Administration (FDA) for the treatment of lung cancer.

Opdivo was approved in December to treat advanced melanoma among people who don't respond to other medicines.

Now, FDA expanded its approval for patients with advanced squamous non-small-cell lung cancer (NSCLC) whose disease progressed during or after trying chemotherapy. The drug has been authorized for people who have been treated with platinum-based chemotherapy.

The decision to approve the drug came just weeks after clinical-trial results were available. The medicine is part of a class of drugs called immunotherapies that use patients' own immune systems to fight cancer.

According to reports, the United States Food and Drug Administration (FDA) has warned doctors against over-prescribing testosterone-boosting drugs for men. As per the federal agency of the United States Department of Health and Human Services, the treatments are not effective for common issues like fatigue and libido, which are age-related.

The agency said that drug-making companies should clear in their promotions and labeling that the drugs they are making which are taken by many men in the United States are approved to treat levels of low testosterone caused by an injury or disease.

New guidelines by the World Health Organization warn that people are consuming a lot of sugar. They must limit their sugar intake to 5 to 10% of their overall calories.

The guidelines strengthen the draft released last year. Focus is on added sugars present in the processed food and in honey, syrups and fruit juices. The suggestion does not apply to naturally occurring sugars like in fruits, milk and vegetables.

"We have solid evidence that keeping intake of (added) sugars to less than 10 percent of total energy intake reduces the risk of overweight, obesity and tooth decay", affirmed Francesco Branca, Director of WHO's nutrition department.

A new study asking "Am I Normal?" analyzed penis size for 15,000 men and it reveals that a majority of men think that they have it smaller than average. According to experts, it is a perceived distortion of masculinity.

Dr. Abraham Morgentaler, associate clinical professor of urology at Harvard Medical School and founder of Men's Health Boston, has discussed with CBS about his latest book, "The Truth About Men and Sex: Intimate Secrets from the Doctor's Office".

It has been informed that the book explores male insecurity in the bedroom and also denies various common stereotypes of men being 'selfish' in bed. According to Morgentaler, behind closed doors, men are more worried about their capability to be provider for their sexual partners.