Strength training is a form of physical exercise that focuses on improving muscle strength and endurance. It typically involves using resistance, such as weights, resistance bands, or body weight, to challenge the muscles. This type of training can help increase muscle mass, enhance bone density, and improve overall physical performance. Incorporating strength training into a fitness routine can benefit people of all ages and fitness levels. It is often recommended to perform strength training exercises at least two to three times a week, targeting major muscle groups like the legs, back, chest, and arms for balanced development.