If you don't practice your legs in fitness, you will regret it sooner or later. Many people think that only practicing upper body muscles, including chest muscles, waist, abdomen, back and arms, can support clothes, and it is easy to lead to disharmony between upper and lower. Secondly, people use their legs the most every day, so it is good to have relatively developed leg muscles. Finally, leg exercises can greatly increase the testosterone content in the body and make it more lasting and powerful during sex. There is a saying that if you don't practice your legs in fitness, you will be impotent sooner or later. This is not groundless. In order to find a good upper body shape, many fitness enthusiasts try their best to practice their chest and arms, and the dressing effect is obvious. Hip and leg muscle training is more uncomfortable and slower, so I avoid leg training. This will form a "compass body" with a strong upper body and a slender lower body, which is not only unsightly, but also increases the endurance of leg muscles, and the waist is easily damaged, you know. What kind of muscle shape can be achieved depends largely on testosterone, so it is more difficult for girls to practice muscles than men, and leg exercises can increase this content.