论文部分内容阅读
人们一般都认为,冬季天气寒冷,人体为了保持恒温,需要消耗比夏季更多的热量和营养物质。但科学研究表明,事实与之恰恰相反,人在寒冷的冬季所需要的热量远没有炎热的夏季多。美国科学家研究发现,成人在零上40℃和零下40℃的环境中,一昼夜所消耗的热量,前者要比后者多400千卡。所以出现这样的情况,是因为人体的营养物质代谢在不同温度的环境下有明显差异。
It is generally believed that the cold weather in winter, the body in order to maintain a constant temperature, you need to consume more calories and nutrients than in summer. However, scientific research shows that contrary to the facts, people need more calories in cold winters than in hot summers. American scientists found that adults in the environment at minus 40 ℃ and minus 40 ℃, the heat consumed by day and night, the former more than the latter 400 kcal. Therefore, such a situation occurs because the human body’s metabolism of nutrients at different temperatures have significant differences in the environment.