Severe depression affects approximately 10% of people. The feeling of depression is something that many people experience from time to time <ref>http://www.nimh.nih.gov/health/publications/depression/complete-publication.shtml#pub3</ref> and can even help individuals to recognize and deal with problems in their lives. In clinical depression, or [[bipolar disorder]], the feeling of depression is worse, goes on for longer and makes it difficult or impossible to deal with the normal things of life. Although depression can be triggered by life events such as childbirth (see [[Postpartum depression]]) or the loss of a loved one due to death, sufferers also often describe feeling sad for no reason at all.<ref>http://health.yahoo.com/experts/depression/5/sadness-amp-depression-what-is-the-difference/</ref> | Severe depression affects approximately 10% of people. The feeling of depression is something that many people experience from time to time <ref>http://www.nimh.nih.gov/health/publications/depression/complete-publication.shtml#pub3</ref> and can even help individuals to recognize and deal with problems in their lives. In clinical depression, or [[bipolar disorder]], the feeling of depression is worse, goes on for longer and makes it difficult or impossible to deal with the normal things of life. Although depression can be triggered by life events such as childbirth (see [[Postpartum depression]]) or the loss of a loved one due to death, sufferers also often describe feeling sad for no reason at all.<ref>http://health.yahoo.com/experts/depression/5/sadness-amp-depression-what-is-the-difference/</ref> |