Drowsiness during menstruation is mostly due to the decrease in the level of estrogen and progesterone secreted by the ovaries, which can cause physical discomfort. Another condition is that women may experience edema during menstruation, and excessive accumulation of fluid in the body may also cause drowsiness. It is a normal physiological reaction for women to be sleepy during menstruation, so pay attention to rest and ensure that you get enough sleep and don’t stay up late. In the diet can be in accordance with dietary habits, appropriate to eat more like, hot blood food, in order to facilitate the body’s absorption of nutrients, but also appropriate exercise to enhance body resistance, conducive to physical recovery.