Depression is a concept that almost everyone is familiar with, but many often fail to recognize its signs in friends, family and themselves. When physicians say ‘clinical depression,’ we are referring to a grouping of symptoms including unusual feelings of sadness or decreased ability or desire to carry out activities an individual would typically enjoy. This type of depression (which is distinguished from typical sadness by severity and duration) is actually quite common: up to 17 percent of Americans experience at least one episode throughout their lives. What is most important is that once diagnosed, clinical depression is very treatable when action is finally taken. The hardest part might be seeking help but once it is sought, treatment might very well be life changing.