Regular exercising is exercise that is done in moderate amounts on a regular basis for a prolonged period of time. Even ten minutes a day of exercise has been shown to have beneficial effects on both the body and mind. Longer periods of exercise done regularly and in moderation have been shown to decrease appetite, decrease body fat, build muscle and bone, stimulate the immune system, and improve a person’s mental and emotional well-being. Regular exercise enhances neurotransmitter production, leading to an increase of both serotonin and dopamine (which also relieves symptoms of anxiety and depression). Raising the levels of neurotransmitters to normal levels also helps lower cortisol levels.