Accelerated aging

Accelerated aging is a process that occurs when a body's natural growth cycle advances through an artificially stimulated process. Accelerated aging can often occur as a symptom of a chronal paradox, or may be deliberately caused through scientific processes for the sake of functionality.

Charmed

 * "I've Got You Under My Skin": A demon called Javna used the power of the Evil Eye to steal the life energy from Brittany Reynolds, turning her into a frail old woman.
 * "Charrrmed!": Piper Halliwell gets cut with a cursed athame and begins to rapidly age.

She-Wolf of London

 * "Nice Girls Don't": Ian Matheson is seduced by a succubus, which causes him to rapidly age more than fifty years beyond his current age. Fortunately, he returns to his normal self shortly thereafter.

Tales from the Crypt

 * "Only Sin Deep"''': A call girl named Sylvia Vane sells stolen valuables in order to get a mystic makeover. As things turn out however, she quickly discovers that her youth and beauty is rapidly abandoning her.