It is known that animals test or lab experiments have their limits and it comes a moment when every scientists/medic wants to test in on the next level: humans.
Michael Mosley is an award-winning journalist and former doctor. In this BBC series he tries to expos the curious, gruesome and sometimes fatal ways in which scientists have transformed medical knowledge regarding anaesthetics by using themselves as guinea pigs. Enjoy the full episode (part1-part6). Via Youtube.com