The guys from AsapScience take a look at some common myths about being sick and debunked them for us in this interesting video. The part about losing heat through your head might be accurate but I can tell you if you are stuck outside in a cold environment and have something to cover your head the psychological impact of that is going to be greater than whatever heat is being lost. If you enjoyed seeing these sick myths debunked then you might also like to see Sick Remedies That Work.