For many male friends today, they often fall asleep after sex. This not only affects their health, but also fails to take into account the feelings of their partner. In fact, this is also caused by physical fatigue. Let us take a look below!

Usually, when a couple has sex, it lasts from the beginning of both parties' sexual excitement to the end of orgasm. Under normal circumstances, the duration is about 5-20 minutes, and it can also be longer than this. During sexual intercourse, the sympathetic nerves of the human body are in a state of high tension, and various hormones, especially sex hormones, are secreted vigorously.

At this time, not only the sexual organs of both parties are in a highly congested state, but also many tissues of the body are involved in this special physiological process from the sexual excitement period to the climax period, such as: accelerated heartbeat, increased blood pressure, accelerated breathing, and systemic Skin blood vessels dilate, perspiration increases, etc. Therefore, during this process, the body's energy consumption increases significantly and metabolism is enhanced.

The reason why you feel tired after sex is mostly due to the temporary relaxation of the reflex function of the brain and spinal cord that controls the discharge of semen after ejaculation. Nerves are excited and tense during ejaculation, and nerves and spinal reflexes relax after ejaculation.

Young people have sensitive and active nerves, so they recover quickly, and some even recover immediately. In elderly people, the nerve response is slow and the recovery time is relatively long. If you fall asleep immediately after ejaculation, the reflex function that caused fatigue will continue to relax, and the fatigue will be difficult to disappear.

Don’t go to sleep immediately after sexual intercourse. Get up and continue doing some daily things, which can help the reflex nerves that have become dull due to sexual intercourse stimulation to recover smoothly. If you fall asleep immediately after finishing, the dull effect of sleep plus the dull effect of sexual stimulation will make your fatigue last until the next day, causing you to have back pain.

So, after sexual intercourse, remember not to turn around and go to sleep immediately; watch TV for a while, get up and drink a glass of water, or talk to a woman for a while before going to sleep, so that the fatigue will not last until the next day.