Causes
Many things can cause temporary psychosis. Environmental triggers, such as losing a loved one, are known to contribute, as may excessive stress, or the interaction of strong social demands with a pre-existing vulnerability of self.
Other causes that have been identified include lack of sleep, fever, brain damage, and even hypnosis.
War/battlefield experience may also trigger a psychotic break: when reality becomes unbearable, the mind temporarily breaks with it.
Parenthood may occasionally set off a psychotic break in men, as may giving birth in women who have previously denied their pregnancy.
Read more about this topic: Psychotic Break