Usually, during sexual activity, the duration from the excitement of both parties to the end of orgasm is about 5 to 20 minutes, and there are also longer periods than this. During sexual activity, the sympathetic nervous system of the human body is in a highly tense state, and various hormones, especially sex hormones, are secreted vigorously.
When both sexual organs are in a highly congested state, from the sexual phase to orgasm, many tissues in the body also participate in this special excitation process, such as jumping, rising blood pressure, deep breathing, skin vascular dilation, sweating, etc. Therefore, during this process, the energy consumption of the fuselage significantly increases and metabolism enhances.
After sexual activity, men usually feel tired, so many people like to sleep, which can eliminate fatigue. In fact, the opposite is true. Going to bed immediately after sexual activity not only causes discomfort for women, but also the fatigue after ejaculation lasts until the next day.
Fatigue after sexual activity is mostly the result of temporary relaxation of the reflex function of the brain and spinal cord that controls semen discharge after ejaculation. During ejaculation, the nerves are excited and tense, and after ejaculation, the nerves and spinal cord reflex nerves relax.
Due to the active neural sensitivity of young people, they recover quickly, and there are also some who recover quickly. Older people tend to have slow neural responses and a longer recovery time. After ejaculation, they immediately go to sleep, and their fatigue reflex function continues to relax, making it difficult for fatigue to disappear.