Many people across cultures grow up hearing that cold weather makes you sick. Going outside without a coat, breathing in cold ...

Your mom used to warn you about going outside and "catching your death," but is it true that cold weather can make you sick?

"Put on your coat so you don’t catch a cold,” Mom always said. Could skipping the warm layers on icy winter days really leave you sneezing and sick?

What your body can do if your outside during a polar plunge in South Florida.

It’s a mystery that has puzzled families, classrooms and entire office buildings—why do some people seem to catch every sniffle, while others glide through cold season untouched? While most of us ...