S3 E19 | Maddest Minds

From a doctor who swallowed Yellow Fever vomit to prove a theory, to another who stitched together a two-headed dog, history's boldest experiments reveal just how far some minds will go; buckle in for a flying lawn chair ride, hear sound played through a dead man's ear, and witness a billionaire's bloody hunt for immortality; these are the maddest minds-and their most unbelievable experiments.