通常,夫妻在过性生活时,人体交感神经处于高度紧张状态,人体各种激素尤其是性激素分泌旺盛。身体的许多组织也参与了这一特殊生理过程,如心跳加快、血压升高、呼吸加深加快、全身皮肤血管扩张、排汗增加等。因此,在这一过程中,机体的能量消耗明显增加,代谢增强。性生活后之所以有疲劳感,大多是由于控制排出精液的脑脊髓在射精后反射机能一时松弛下来的结果。年轻人神经灵敏活跃,所以恢复得很快,有的甚至马上恢复。上了年纪的 Usually, the couple in sexual life, the body’s sympathetic nerves in a high degree of tension, the body’s various hormones, especially sex hormone secretion. Many of the body’s tissues are also involved in this particular physiological process, such as rapid heartbeat, elevated blood pressure, faster breathing, systemic vasodilation and increased perspiration. Therefore, in this process, the body’s energy consumption increased significantly, increased metabolism. The reason why fatigue after sex, mostly due to the control of encephalomyelitis discharge encephalopathy after ejaculation reflex function temporarily relax the results. Sensitive and active young people, so quickly recovered, and some even immediately restored. Old