You should not smoke during menstruation. Because the nicotine, cyanide, carbon monoxide and other harmful substances contained in smoke are more likely to enter the human blood circulation and organs during menstruation, causing health hazards. During menstruation, women are weaker and less resistant due to blood loss, so they lose their immunity to the toxic ingredients in smoke, which can cause endocrine disorders, menstrual cramps and other symptoms, and can affect their sleep. Women need to pay attention to rest and nutrition during menstruation, to develop regular rest and rest habits, to avoid straining and staying up late, to maintain a relaxed mood, to avoid excessive stress, which affects physical health. Eat a light, easy-to-digest diet, fresh vegetables and fruits, protein-rich foods, avoid spicy and stimulating foods, and stop smoking and drinking.