A form of Hollywood Science where it's possible to, in effect, "drain", or "transfer", or "reverse" physical conditions. The usual form this takes is related to Life Energy-- if you drain someone's life energy, they start to show the physical signs of aging. Transferring life energy ages the victim and youthens the recipient. This treats aging as if it's the presence or lack of a substance, rather than a set of physical conditions; it would be like having a device which fixes flat tires by "draining the roundness" from things, causing nearby pizzas to turn polygonal. This is especially unrealistic with regards to hair as people who have their life energy drained immediately gain gray hair, despite the fact that hair is dead and the gray color comes from the hair follicles in the skin not p