Running can effectively improve cardiovascular fitness and muscular endurance. It is a simple activity that can be done anywhere and adapted for different training intensities. The document recommends warming up and stretching before running to prevent injuries. Running engages the quadriceps, hamstrings, calves and stabilizer muscles in the hips, back, abdomen and arms. Risks include ankle, knee and shin injuries as well as stress fractures. Benefits are improved heart and lung health, toned muscles, increased energy and weight management. Light shoes, shorts or pants, and water are the basic equipment needed. Consistency in training and combining workouts are keys to success. Running is a great full-body exercise for weight loss, fitness and health.