The lack of energy in women after sex is a relatively common physiological phenomenon, but it may also be caused by the deficiency of qi and blood in the female body. It is recommended that you pay attention to avoid strain, avoid getting cold, pay more attention to rest, you can use hot water to soak your feet to speed up the body’s metabolism, which can effectively relieve the phenomenon of weakness. Ensure sufficient sleep, eat more food to supplement qi and blood, such as lean meat, pork liver, spinach, fish, eggs and so on. Pay attention to proper exercise to improve the body’s immunity.