Stress is the body's response to demands placed on it, causing the release of adrenaline and activating the fight or flight response. Moderate stress can improve performance, but too much leads to negative effects. Common stressors include school, work, family, health, finances, and relationships. Left unmanaged, stress can cause physical issues like changes in weight or blood pressure and emotional issues like anxiety and depression. Effective stress management techniques involve relaxation exercises, physical activity, meditation, counseling, changing perceptions, and scheduling self-care activities. Managing stress leads to benefits like improved physical and emotional health as well as focus and achievement.