Don't Go Outside With Wet Hair
The real deal: "Germs cause illness," says Meg Fisher, M.D., chair of pediatrics at Monmouth Medical Center, in Long Branch, New Jersey. "And viruses and bacteria don't care whether it's hot or cold outside." Both the flu and the common cold are spread by person-to-person contact, such as holding hands or sharing a cup with someone who is infected. There's no evidence that temperature has any effect on the onset of illness. Still, if you have the time, dry your child's hair before she heads out into frigid temperatures. Moisture in the hair can freeze and make her chilly and uncomfortable.