Women feel tired the next day after intercourse, which is a normal phenomenon, because when intercourse, the body moves significantly, plus the heart rate increases, blood pressure rises, when reaching orgasm will also appear vaginal, anal sphincter rhythmic contraction, the whole body muscle tension and spasm, equivalent to experience a heavy physical labor, so after intercourse will feel very tired, it is recommended to pay attention to rest and strengthen nutrition. Generally, if you have intercourse once a night, you will be able to recover the next day, but if the number of intercourse is too frequent, or the intercourse time is too long, and the rest time is too late at night, it will affect the recovery of the next day. Control the number of intercourse.