Depression is a mood disorder that causes a persistent feeling of sadness and loss of interest. Also called
major depressive disorder or clinical depression, it affects how you feel, think and behave and can lead to a
variety of emotional and physical problems. You may have trouble doing normal day-to-day activities, and
sometimes you may feel as if life isn't worth living.
More than just a bout of the blues, depression isn't a weakness and you can't simply "snap out" of it.
Depression may require long-term treatment. But don't get discouraged. Most people with depression feel better
with medication, psychotherapy, or both.
Although depression may occur only once during your life, people typically have multiple episodes. During these
episodes, symptoms occur most of the day, nearly every day and may include:
For many people with depression, symptoms usually are severe enough to cause noticeable problems in day-to-day
activities, such as work, school, social activities, or relationships with others. Some people may feel
generally miserable or unhappy without really knowing why.
Common signs and symptoms of depression in children and teenagers are similar to those of adults, but there can
be some differences.
Depression is not a normal part of growing older, and it should never be taken lightly. Unfortunately,
depression often goes undiagnosed and untreated in older adults, and they may feel reluctant to seek help.
Symptoms of depression may be different or less obvious in older adults, such as: