Contrary to popular belief, a little chill never hurt anyone. In fact, cold weather boasts a few health benefits. "It's a complete myth that being in the cold will make you sick," said Trisha Acri, a professor of family and community medicine at Temple's School of Medicine. "It's being inside in a closed environment with the windows shut and no air circulation that makes getting sick more likely." To avoid coming down with a bug, you're better off taking a stroll around the block than touching germy doorknobs, faucet handles or remote controls.