Each year, almost 44 million Americans experience a mental disorder. In fact, mental illnesses are among the most common conditions affecting health today. The good news is that most people who have mental illnesses, even serious ones, can lead productive lives with proper treatment. Mental illnesses are some of the most misunderstand afflictions in today’s society. Too many people think of mental illness as a “weakness.” Nothing could be further from the truth. These are true illnesses and brain diseases. Mental illnesses are illnesses that affect the way a person thinks, acts, and feels. Like most illnesses, they have included biological, psychological, and environmental roots. The more severe mental illnesses are primarily diseases of the brain that cause distorted thinking, feelings, or behavior.