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过去有人说:“四肢发达,头脑简单”。其实,这是误传。人的大脑活动能量,主要来源于糖。但是大脑本身储搪甚少,还得靠血液输送。实验表明,每100毫升血液中血糖含量达到120毫克时,大脑功能活动正常,记忆处于最佳状态。血糖含量低于60毫克时,人会出现倦怠乏力,思维迟钝,难以工作。血糖来自于食物供给,而食物的消化和吸收,则需要适宜的运动。运动还能促使大脑释放亮氨酸,即脑啡呔。经常运动,大脑内的核糖核酸可较平时增加大约10～20%,它可以促进脑垂体分泌神经激素,即内啡呔(其中包
In the past someone said: “limbs developed, simple-minded ”. In fact, this is a misnomer. Human brain activity energy, mainly from sugar. But the brain itself is very little storage, have to rely on blood transmission. Experiments show that every 100 ml of blood glucose levels reached 120 mg, normal brain function, memory in the best condition. When the blood sugar level is lower than 60 mg, people may experience fatigue, slow thinking and hard work. Blood sugar from the food supply, and food digestion and absorption, you need appropriate exercise. Exercise also can make the brain release leucine, brain browning. Regular exercise, the brain of the RNA can be increased by about 10 to 20% more than usual, it can promote pituitary secretion of neurohormones, namely endorphins (which package