You can't. Because during menstruation, the metabolism is slow, the mood is irritable and depressed, and the low resistance of neuromodulators decreases, which is easy to cause menstrual cycle disorder. During this period, many women kept losing weight and exercising because of their weakness, which led to physical discomfort and illness, which seriously affected their health. It is suggested to avoid heavy physical labor and strenuous exercise during menstruation, avoid eating cold food and eat warm food. Chinese medicine believes that blood heat will do, while blood cold will cause blood stasis. Don't catch a cold, eat cold food, etc. And don't violate it.