World Health Organisation Depression Stats 2025. Read on to learn more about how many people. Depression, also known as major depressive disorder, is a mental health disorder that negatively affects how a person feels, thinks, and acts.

Depression, also known as major depressive disorder, is a mental health disorder that negatively affects how a person feels, thinks, and acts. Depression has been on the rise among american teenagers, with teen girls experiencing it at notably higher rates than boys.