Hot Head

Wear hats in cold weather to stay warm.  Don't go outside with wet hair (you could catch a cold).  If you're hot, take your hat/hood/ear muffs/scarf off so the heat can escape.  All of these valuable pieces of advice support the common myth that you lose most of your body heat through your head.  In fact, you only lose 10% of your body heat through your head.  The rest is lost in various other parts of the body.  So unless "most" can qualify as significantly less than half, most of your body heat is NOT lost through your head.