Depression is classified as a mood disorder, and may be described as feelings of sadness, loss, or anger that interfere with a person’s everyday activities. According to the Centers for Disease Control and Prevention (CDC), depression affects one in 10 Americans.

People experience depression in different ways. It can often interfere with your daily work and relationships. Depression can result in lost time at work and lower productivity. It also can influence some chronic health conditions. Arthritis, asthma, cardiovascular disease, cancer, diabetes, and obesity can all worsen with depression.