The U.S. Department of Health and Human Services, Public Health Service, issued the "Depression Is a Treatable Illness: A Patient’s Guide," in 1993. It is still very helpful for care-share members and teams when seeking help. It tells us: When someone is depressed, that person has several symptoms nearly every day, all day, some at least two weeks. It also provides a chart. You can use the chart to check (x) off any symptoms you or someone you know has had for two weeks or more.