Stress can be caused by both physiological and psychological stressors. The body responds to stress through the release of stress hormones and physical adaptations. Prolonged stress can lead to exhaustion. People respond psychologically to stress through feelings like depression, anxiety, and difficulty focusing. Personality traits like optimism can act as a buffer against stress while traits like anger and hostility increase health risks. Coping strategies like problem-focused approaches, social support, and relaxation techniques can help manage stress.