Does my energy level change during my period?
It might. Some women report low energy levels during their period, while other women have more energy than usual during this time. Changing hormone levels through the menstrual cycle may be the cause.
Week 1: On the first day of your period, estrogen and progesterone levels are at their lowest. But they begin a gradual rise during your period. It may be easier to get active than in the previous weeks.
Week 2: In the week after your period ends, your energy levels might begin to go up. Estrogen levels begin rising quickly in preparation for ovulation (releasing an egg from the ovary).
Week 3: Estrogen levels peak around the time of ovulation, about two weeks before the next period for most women. When estrogen levels fall quickly after ovulation and progesterone levels begin rising, you may feel more tired or sluggish than usual. This does not mean that you should not exercise. In fact, being active might help boost your mood and give you more energy. Try exercising first thing in the morning, before your energy level goes down as the day goes on.
Week 4: In the week before your next period, you may feel less energy as both estrogen and progesterone levels are falling (if you are not pregnant). Physical activity may help premenstrual symptoms (PMS) get better even if your energy levels are low.
Try keeping a fitness journal to track your menstrual cycle and your energy levels during each workout. After a few months, you should be able to see when you have more or less energy during your cycle.
If you take hormonal birth control, like the pill, patch, shot, or vaginal ring, your energy levels may still go up and down with your cycle, but the differences may not be as noticeable.