-
Religious reasons allowed doctors or professionals to drill holes into people's heads to "release demons".
-
In Alabama, a group of African Americans was studied on diseases in blacks. They were not told they had syphilis, nor told about treatments and preventing the spread as well as given medication.
-
Horrendous experiments on homosexuals, different skin tones, jews, anyone not born of "pure lineage". These included sleep deprivation, lack of food and water, and unnecessary surgeries.
-
A few of these ethical codes include a) essential consent b) must yield results to society c) avoidance of mental pain and suffering