Rain in the forecast could force some alterations to your Halloween costume. Adding a jacket might be necessary, according to the forecast for some areas. One more last-minute change to consider: Leave the decorative contact lenses at home. (MORE: 10 Real-Life Health Horror Stories for Halloween) If used without a doctor’s approval, color contact lenses can cause blindness, conjunctivitis, corneal infection or pink eye. Many people wear these contacts without making sure they fit properly, sometimes leading to scratches on...

((Thinkstock)) The severe acute respiratory syndrome (SARS) virus — which caused a pandemic in 2002 and 2003, killing more than 750 people worldwide — likely originated in horseshoe bats in China, according to a new study. The researchers identified two new SARS-like viruses (called coronaviruses) in the bats that are very similar to the SARS virus that infects people. (MORE: 10 Illnesses that Flourish in Fall) Although SARS-like coronaviruses have been isolated from bats in the past, which suggested the...

10. High school sports can cause serious injuries and even death. For example, from 1982 to 2011, boy’s cross-country had a fatality rate of .36 per 100,000 children, according to data from the National Center for Catastrophic Sport Injury Research. Here’s a countdown to the deadliest high school sport. (Thinkstock/Jupiterimages) Few things can stop football teams from competing. Despite rain, snow and injuries, players tend to play all four quarters. In recent years, one previously ignored hazard has prevented players...