Depression affects approximately 280 million people around the world, and it's only becoming more common. As of 2021, 1 in 5 American adolescents had experienced a major depressive episode in the year prior alone. Depression can occur in anyone, and a variety of factors, from genetics to specific experiences, play a role in its development. With depression becoming increasingly prevalent, it is important to understand the disorder and the causes and symptoms related to it. This helps people identify it and support others or themselves. Not Just a Bad Day highlights what depression is, how it occurs, what treatments are available, and related conditions that may accompany it. Discover more about this widespread disorder.