So what is depression? Depression is often more about anger turned (1)_____ than it is about sadness. But it's usually (2)_____ as sadness. Depression can (3)_____ at all ages, from childhood to old age, and it's the United States' No. 1 (4)_____ problem. When someone is depressed, her behavior. (5)_____ change and she loses interest in activities she (6)_____ enjoyed (like sports, music, friendships). The sadness usually lasts every day for most of the day and for two weeks or more. What (7)_____ depression? A (8)_____ event can certainly bring (9)_____ depression, but some will say it happens (10)_____ a specific cause. So how do you know if you're just having a bad day (11)_____ are really depressed? Depression affects your (12)_____, moods, behavior. and even your physical health. These changes often go (13)_____ or are labeled (14)_____ simply a bad case of the blues. Someone who's truly (15)_____ depression will have (16)_____ periods of crying spells, feelings of (17)_____ (like not being able to change your situation) and (18)_____ (like you'll feel this way forever), irritation or agitation. A depressed person often (19)_____ from others. Depression seldom goes away by itself, and the greatest (20)_____ of depression is suicide. The risk of suicide increases if the depression isn't treated.