The National Institute of Mental Health (NIHM) has called off plans for a study chelation, a controversial type of treatment for autism after the agency expressed its doubts in the procedure's safety.

Chelation is a type of therapy in which a man-made amino acid, called EDTA, is added to the blood, and it has been used to treat heavy metal poisoning. It is used by many as alternative medical therapy for children with the condition

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

Authorities in China on Monday reported the arrest of two men as part of the investigation into the controversial contaminated baby milk formula that sickened over 600 infants.

The announcement came as new Zealand Prime Minister Helen Clark said she learned about the issue on September 5 and directed her senior ministers to coordinate with provincial officials in China to inform their superiors

The Food and Drug Administration approved Friday Merck & Co.'s cervical cancer vaccine, Gardasil, for the prevention of vulvar and vaginal cancer.

Gardasil, which was FDA-approved in 2006 as vaccine against the human papillomavirus or HPV, also protects against cancers of the vagina and vulva, which inflicts over 5,000 women in the U.S. annually, according to Merck

Researchers have taken a look at the health care needs of people displaced by Hurricane Katrina that remained in travel trailers and found barriers to their receiving adequate care.

Specifically, researchers found a worsening of chronic disease and mental illness, as well as barriers to individuals receiving care since they were displaced. But researchers said th meeting those needs were "essential" for ensuring recovery