(Thinkstock/Stockbyte) A new study sheds light on the environmental factors that may be linked to Alzheimer’s disease. Exposure to the pesticides DDE and DDT may up a person’s risk of developing the neurodegenerative disease, researchers from Rutgers University report in the new issue of JAMA Neurology. “Alzheimer’s patients had, on average, more than four times the [blood] levels of DDE than controls,” study author Jason R. Richardson, associate professor in the department of environmental and occupational medicine at the Robert...

(Shutterstock) A woman in Texas who died in 2012 succumbed to a rare blood cell disease, which was caused by the mosquito-borne dengue virus infection, according to a report of her case published Thursday. The case shows that while dengue remains rare in the United States, vigilance for the disease is important, and health professionals should be aware of the complications the virus can cause. The woman died after herdengue infectionbrought on another condition called hemophagocytic lymphohistiocytosis (HLH), in which...

Figure skaters pose at the 1924 Winter Olympics in Chamonix, France. From left are Herma Planck-Szabo of Hungary, Ethel Muckelt of Britain and Beatrix Loughran of the U.S. (Topical Press Agency/Hulton Archive/Getty Images) Regardless of whether they win gold, athletes at this year's Winter Olympics will no doubt expend a significant number of calories as they try to ski, jump and skate their way past the competition. But which winter sport burns the most calories? According to the Compendium of...