Stress is the body's response to real or perceived threats, events, or changes called stressors. There are two types of stress: eustress, which is positive stress that motivates action; and distress, which is negative stress that occurs at too high or too low levels and causes negative psychological and physical responses. When experiencing stress, the body goes through three stages - the alarm stage where it immediately responds to the stressor; the resistance stage where it tries to cope and repair any damage; and the exhaustion stage where the stressor is not being managed effectively and damage accumulates. Suggested ways to manage stress include exercise, healthy eating, relaxation techniques, developing new skills, and seeking social support.