Mental Illnesses are mental health conditions that alter your mood, thinking and behaviour. Examples of these are depression, anxiety and stress
There is no way to guarentee the prevention of mental illness. However we can definitely reduce the chances of getting a mental illness by lowering the amount of stress that we encounter and also boosting self-esteem is a good ways to reduce your chances of ever getting a mental illness
There is no cure for mental illnesses. However there are plenty of effective treatments that can help some people recover and go on to live long happy lives. Some treatments for mental illnesses include: anti-deppressant pills, physcotherapy and therapy among others.
Mental Illness itself occurs when you are stressed for a long period of time, physically abused by someone you know or a stranger, or perhaps a traumatic event like a death of a loved one.