It is estimated that about 15 percent of us will have at least one bout of depression in our lifetimes that's severe enough to require medical attention. Sometimes it's triggered by an emotional blow such as a divorce or the death of a loved one, but it can also appear out of nowhere. A family history of depression can also put you at risk. That doesn't mean there aren't other causes, but a family history of depression makes a person more prone to it. Depression often surfaces during times of transition, such as the teenage years, midlife and retirement.
Hormones can also play a role.
Some women who take birth control pills or hormone replacement therapy may experience depression as an effect of their pills and should see their doctors for guidance. Premenstrual and postpartum depression are also common. Some experts feel that what you're eating and drinking also plays an important role. Here are some tips from Larry Christensen, Ph.D., chairman of the Department of Psychology at the University of South Alabama in Mobile and author of The Food-Mood Connection. Cut back on sugar.