Lifting weights is a form of strength training that involves using resistance to build muscle and improve overall fitness. This can be done with various equipment, such as dumbbells, barbells, or weight machines. The primary goal is to increase muscle strength, endurance, and size by performing exercises that target specific muscle groups. When lifting weights, individuals typically perform sets and repetitions. A set is a group of consecutive repetitions, while a repetition is one complete motion of an exercise. Proper technique and safety measures, such as using a spotter or maintaining good posture, are essential to prevent injuries and maximize benefits.