Today's modern medicine sometimes uses a body to heal a body -- blood and organ donation, for example. But there used to be such a thing called corpse medicine. Seriously. Have a headache? The ancient Egyptians believed mummy powder would help -- and for a couple of centuries it was considered de rigueur to use ground up skull to treat a migraine. Muscle ache? Try rubbing some human fat on the spot. Epilepsy? The Romans believed drinking the blood of a gladiator was powerful enough to cure that condition. Human organs, fat, bones, blood and mummified remains were once considered magical, and ancient healers used cannibalistic remedies up until the 18th century. The general idea behind this practice was that the patient receiving the treatment would actually benefit from the soul and spirit of the donor (living or deceased) and its healing energy.