A study made by the Center for Addiction and Mental Health in Toronto linked the winter blues with seasonal changes in the brain triggered by high levels of a protein.

The protein, according to the study published in the Archives of General Psychiatry, clears serotonin from the brain. Serotonin is a chemical messenger that regulates mood, energy levels and appetite

More than 70,000 people developed post-traumatic stress disorder as a result of the 9/11 attacks, a new analysis from the World Trade Center Health Registry said.

The report, released by the New York City health department and published in the Journal of Urban Health examines health effects among all 71,437 participants of the WTC Health Registry for up to 20 years after the Sept. 11, 2001 attacks. This is an estimated 17.4 percent of the people exposed to the disaster

Overweight or obese men suffering from asthma are nearly five times more likely to be hospitalised for the condition as compared to non-obese people, a new study has said.

The first of its kind study, conducted by David M Mosen of the Kaiser Permanente Center for Health Research at Denver surveyed 1,113 asthma patients above 35 years of age, while controlling risk factors like smoking, use of oral or inhaled medications, gastroesophageal reflux disorder, and demographics that might explain the obesity-asthma association

A government panel of experts has released its final report on the possible human effects of bisphenol A, or BPA, a chemical added to plastics to make it stronger.

The National Toxicology Program, part of the National Institutes of Health, notes "some concern" for effects on the brain, prostate gland, and on behavior in fetuses, infants, and children

A childhood vaccine given for protection against measles, mumps and rubella (MMR) is not linked to autism, a new study published Wednesday said.

The MMR vaccine has been linked to the autism for the last 10 years with many experts believing that the live virus found in it can cause inflammation in the intestines, resulting in toxins leaking into the bloodstream and damaging the developing brain