You can’t sit down immediately after exercise; you can sit down and rest after walking slowly for a while or stretching sufficiently. During exercise, the body due to muscle anaerobic exercise will produce a large number of acidic substances, exercise immediately after sitting down will lead to excessive accumulation of acidic substances in the body, resulting in delayed muscle soreness. Sitting down after exercise will also lead to lower extremity blood vessel pressure, affecting the lower extremity muscle tissue metabolism, making the lower extremity muscle dysfunction, is not conducive to the soft tissue self-repair, serious cases will affect the continuation of the movement. Just after exercise, the body is in a state of excitement, the cardiovascular system is still overactive, blood circulation is running at high speed, immediately after sitting down, the body will not be able to adapt to the sudden changes and a series of effects, serious cases can be coma. Therefore, it is not recommended to sit down immediately after exercise, and should wait for the body’s systems to adapt before sitting down to rest, so as to avoid adverse effects.