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人类正处在为了保持健康而寻求每日最佳活动模式的十字路口上。科学家们发现,在人类进化史上,脑容量越来越大,而脑容量越大,对饮食的质量要求越高,这导致了总的能量消耗比增加。此外,随着人类迁徙和农业的进步,人们的食物来源和质量也不断发展。研究发现古代人类维持基本生活的总的能量效率/静息能量消耗或体力活动水平(PAL)之比接近3.2,而在现代社会人类的PAL约为1.67。欧美学者在1970至1990年的研究显示,所有年龄组人群的平均有氧运动显著减少。这些证据表明,人类从环境中获取能量的效益越来越高,但消耗能量却越来越少。科学家们观察到了能量效率升高的不良后果,即与体力活动水平低、坐式生活方式水平高相关的健康问题。
Humans are at a crossroads seeking the best daily routine for health in order to stay healthy. Scientists have found that in the history of human evolution, the brain capacity is getting bigger and bigger, and the higher the brain capacity, the higher the quality requirements of the diet, which leads to the increase of the total energy consumption ratio. In addition, as humankind migrates and agriculture advances, people’s sources and quality of food are also evolving. The study found that the ratio of total energy efficiency / resting energy expenditure or physical activity level (PAL) of ancient humans to basic life was close to 3.2, whereas that of humans in modern society was about 1.67. Studies by European and American scholars from 1970 to 1990 showed a significant reduction in mean aerobic exercise among all age groups. The evidence shows that human beings are getting more and more benefits from the environment but consume less and less energy. Scientists have observed the adverse consequences of increased energy efficiency, namely health problems associated with low levels of physical activity and high sitting-style lifestyles.