To feel angry from time to time is completely natural and completely human. Anger is one way the body responds to threatening and dangerous situations, and expressing anger can be both necessary and beneficial. Anger, however, can quickly escalate — angry individuals can become verbally and physically dangerous to others

Everyone feels sad or down now and then. We may say we've got the blues or we're feeling blue. Feeling sad for an extended period of time, though, can mean that something more serious is going on, such as depression. By understanding depression, including its causes and symptoms, you can get the treatment you need to live a fuller life.