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Ask the Experts

Question:

How many Americans suffer from chronic depression?

Answered by: Myrna Weissman

The prevalence of depression varies by whether you define it as moderate or severe or whether you include mild depressions without impairment. But let's just take the moderate case; I think the conservative figures are that about 10 percent of adults will experience a moderate depression sometime in their lives.

Now, if you include the more mild depressions, then the figure gets up to about 15 percent.