The next day after sex is very tired, indicating that the frequency of sex is too high, resulting in excessive physical exertion causing fatigue. It is recommended that the frequency of sexual intercourse should be controlled, the duration of sexual intercourse should not be too long, should pay attention to rest, strengthen nutrition, appropriate exercise, only the body’s condition is well adjusted, after sexual intercourse did not feel tired, such sexual intercourse is beneficial to the human body. Feeling fatigue the next day after sexual intercourse, it is recommended that the number of sexual intercourse should be properly reduced, each time the time of sexual intercourse should not be too long, should be properly supplemented with a variety of nutrients, such as eggs, beef, mutton, vegetables, fruits, only good physical condition, not tired after sexual intercourse, is normal.