A brochure that NHS gives to people who suffered the "first episode of phychosis" assumes the reason to be an amount of work/life stress. Each person has a different innate threshold to tolerate stress, and when that limit is exceeded our minds escape into an alternative reality. This state of psychosis is similar to a regular dream: you follow some scenario "on autopilot" without knowing that you are dreaming. Most do eventually wake up from the phychosis, but they may relapse after the next stressful event. Some live there permanently thereafter. That's schizophrenia... Alcohol and drugs play a role by lowering the threshold.
A brochure that NHS gives to people who suffered the "first episode of phychosis" assumes the reason to be an amount of work/life stress. Each person has a different innate threshold to tolerate stress, and when that limit is exceeded our minds escape into an alternative reality. This state of psychosis is similar to a regular dream: you follow some scenario "on autopilot" without knowing that you are dreaming. Most do eventually wake up from the phychosis, but they may relapse after the next stressful event. Some live there permanently thereafter. That's schizophrenia... Alcohol and drugs play a role by lowering the threshold.