These body chemicals produce a euphoric state. This is especially helpful to the depressed person who may have a deficiency in seratonin, another mood enhancing chemical. Exercise cleanses the body, gives the individual more energy, assists in weight loss, and encourages a healthy appetite. All of these benefits directly affects specific symptoms of depression. Positive self-talk is another approach to dealing with depression.
Cognitive theory states that how a person thinks directly affects how the person feels.
Within the context of depression, how a person perceives themselves is relevant. It is important to say uplifting positive statements over, and over again. I am a capable and lovable person. I can deal with the situations presented to me today. Right now, I feel good about myself.