Schizophrenia is a brain disorder, that makes people have difficulties to: think clearly, distinguishing reality from fantasy, and managing emotions positively, affecting decision-making and relationships with other people.

Bipolar disorder, or manic depression, is a brain disorder that causes extreme swings in mood, energy, and functioning in a person with the disorder.

Clinical depression is a serious and common illness that affects us physically and mentally in our way of feeling and thinking. Depression can make us want to withdraw from our family, friends, work, and school. It can also cause us anxiety, loss of sleep, loss of appetite, and lack of interest or pleasure in doing different activities.