Decompression sickness (DCS; also known as divers' disease, the bends or caisson disease) describes a condition arising from dissolved gases coming out of solution into bubbles inside the body on depressurisation. DCS most commonly refers to problems arising from underwater diving decompression (i.e., during ascent)
Dogs and other animals affected by rabies foam at the mouth while in stupor, which looks like they are in anger. This phenomenon can affect humans also. The earliest usage can be traced to Shakespeare’s Julius Caesar in 1601.
Guards and prisoners had been chosen randomly from the volunteering college students. Some participants developed their roles as the officers and enforced authoritarian measures and ultimately subjected some prisoners to psychological torture.
This phenomenon has become so powerful a predictor of behavior, even outside the realm of politics, that the researchers who did the study say that political affiliation now has more influence on what people do and how they behave than race does.