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冬季的早晨空气新鲜、灰尘杂质少,是锻炼身体的大好时光。人们经过一夜的睡眠,大脑皮层中还残留着睡眠留下的抑制痕迹,神经细胞的兴奋性及各器官系统的机能状态也较低,因此早晨适当参加体育运动可以使大脑皮层的神经细胞尽快兴奋起来,使各个器官系统机能的惰性得以克服,使人们以充沛的精力去迎接即将到来的一天的工作或学习。早晨在空气新鲜的环境中进行长跑运动,能够增加血液中的含氧量,同时加速血液循环和新陈代谢,使身体各部位得到充足的氧气和养料,这对于增进人体健康、预防疾病、提高工作效率是极为有利的。
Fresh air in winter morning, less dust and impurities, is a good time to exercise. After a night's sleep, people still have traces of sleep left in the cerebral cortex. The excitability of nerve cells and the functional status of various organ systems are also low. Therefore, proper exercise in the morning can excite nerve cells in the cerebral cortex as soon as possible To overcome the inertia of the functioning of the various organs and systems, and to enable people to devote their energies to the work or study of the coming day. Morning long-distance running in the fresh air environment can increase the oxygen content in the blood, accelerate the blood circulation and metabolism at the same time, and get enough oxygen and nourishment in all parts of the body, which is good for improving human health, preventing diseases and improving work efficiency It is extremely beneficial.