You can take a bath after a period of rest after exercise, but it is not recommended to take a bath immediately, nor is it recommended to take a cold bath. Firstly, pores are dilated after exercise, so if you take a shower with cool water, it may stimulate the pores to contract, which is not conducive to perspiration. Secondly, more energy is consumed after exercise, and blood circulation is accelerated when bathing, which may cause hypoglycemia, so it is not recommended to take a bath right away. It is usually recommended to rest for about 30 minutes before taking a shower.