XMRV, a mouse virus, may be an artifact of laboratory experiments rather than the cause of chronic fatigue syndrome. Whittemore Peterson Institute hide caption

itoggle caption Whittemore Peterson Institute

A Washington man talking on his cellphone may be taking a health risk, according to an analysis from the World Health Organization that finds a possible risk of cancer from exposure to the devices. Nicholas Kamm/AFP/Getty Images hide caption

itoggle caption Nicholas Kamm/AFP/Getty Images

A farmer holds cucumbers in a field in Malaga, Spain. Cucumbers from Spain have been eyed as the source of a disease outbreak in Germany. Jorge Guerrero/AFP/Getty Images hide caption

itoggle caption Jorge Guerrero/AFP/Getty Images

Lexi (middle) with her two younger brothers Jorge (left) and Keegan. Before Lexi and her brother's were adopted, Lexi was their prime caretaker. "I fed them when they were very, very hungry," Lexi says. Courtesy of Rebecca hide caption

itoggle caption Courtesy of Rebecca