海水有潮汐,人生有节律。夏季正午时分气温较高,人体在排汗降温的过程中,皮肤毛细血管扩张,体内血液分布不均匀,大量血液滞留体表,以致大脑血液供应相对不足,再加上一上午的紧张工作与学习,人们会普谝感到疲乏和精神不振。如果午饭后正确地进行午睡休息,则可使大 Sea water tides, life rhythms. During the summer when the temperature is high at noon, the body in the perspiration cooling process, the skin telangiectasia, uneven distribution of blood in the body, a large number of blood stranded body surface, resulting in a relatively insufficient blood supply to the brain, coupled with an intensive work and study in the morning People feel tired and sluggish in general. If after lunch nap nap properly, you can make big