You can’t walk fast during menstruation, because walking fast belongs to strenuous exercise, strenuous exercise during menstruation will affect the health of the body, easy to cause increased menstrual flow. The body’s resistance is low during menstruation, if fast walking will cause physical exertion, easily aggravate the body’s resistance is low, in the menstrual period can be slow walking, pay attention to the walking time can not be too long, if the walking time is too long will cause excessive exertion affects the health, it is best to observe the amount of menstruation, if excessive bleeding need timely ultrasound examination, if necessary, under the guidance of the doctor reasonable use of drugs to stop bleeding, so as not to cause anemia. If the symptoms of anemia occur during menstruation, coupled with strenuous exercise can easily cause dizziness and lack of blood supply to the brain, it is best to eat more blood-supplementing foods and protein-rich foods, such as animal liver, red dates, spinach, etc. You can do aerobic exercise.