Weight training provides numerous physical and mental health benefits such as fat loss, increased energy, stronger muscles and bones, improved cholesterol levels, and reduced risk of many diseases. It also improves body composition by increasing muscle and decreasing fat, boosts metabolism, and enhances everyday functioning, flexibility, posture, and balance. Weight training lowers injury risk and can reduce stress, anxiety, and improve mood and quality of sleep. To maximize results, one should focus on compound exercises, progressively increase weight and intensity over time, incorporate variety, and allow for adequate rest and recovery between workouts. Proper form and technique are also important to gain benefits safely.