Doctors and psychologists are often seen as trusted pillars of society. Everyone assumes those in the medical community would behave in a correspondingly ethical and humane manner. But, in many cases, that is most definitely not the case.
Historically, sophisticated and well-educated individuals not only ignored medical ethics, they seemed intent on devising experiments and clinical analysis deliberately designed to inflict a maximum amount of pain, suffering, permanent injury, and even death. They exploited the vulnerable or the conquered with a cruelty and savagery that contradict the fundamentals of medicine and humanity. While some of these excesses are well known, other lesser-known transgression are just as shocking and disturbing. Here are seven examples of the cruelest and most brutal human experiments ever performed.