Some people insist that heading out into the cold with something wet — like your hair following a shower — can significantly increase your chances of getting sick with the common cold. These same people tend to argue that, the more wet you are, the more likely you are to get sick.
But that’s simply not the truth. While being wet outside can cause your body temperature to drop faster, opening you up to issues like hypothermia, it’s unlikely to raise your chances of catching the common cold. Remember that colds are caused by viruses, not temperature, so wearing a toque or ear muffs won’t do much to protect you from the sniffles.