This document discusses mental health and illness. It defines mental health and lists some of its effects. Mental illness is caused by abnormal brain functioning and can cause thinking, emotional, and sleep problems. Common mental disorders mentioned include depression, schizophrenia, bipolar disorder, and anxiety disorders. The document also summarizes a study conducted on mental health status of university students in India which found high rates of mood changes, anger, and substance abuse among hostel residents. It concludes by emphasizing that those with mental illness should have their rights and contributions to society respected.