Honey, you can't lose weight during your period. You are already very weak. If you lose weight again, you will hurt yourself. If you don't want to gain weight during your period, it's definitely not advisable to do some slow-motion slimming and strenuous exercise. The best slimming period is one week after menstruation, which is called fat burning after menstruation. During this period, you can get twice the result with half the effort, but the exercise effect is not obvious within half an hour, at least for half an hour.