How Sleep Affects Metabolism and Weight
睡眠如何影响新陈代谢与体重
Many people sacrifice sleep for work or entertainment, only expecting tiredness the next day. Yet recent studies show mild sleep loss harms metabolism. One research identifies a brain feedback loop linking sleep and growth hormone, which repairs tissue and regulates fat metabolism. Another six-week study found losing roughly 80 minutes of sleep nightly brought slight weight gain and more sedentary behaviour. Sleep deprivation influences metabolism via multiple subtle mechanisms including fatigue and reduced movement. Still, more sleep cannot guarantee weight loss. Sleep works together with diet and exercise to maintain metabolic health; chronic mild sleep debt slowly damages our body.
很多人为工作或娱乐牺牲睡眠时间，只觉得第二天会疲惫。但近期研究表明，轻度睡眠不足会损害新陈代谢。一项研究发现睡眠与生长激素之间存在大脑反馈回路，生长激素能够修复组织、调节脂肪代谢。另一项为期六周的研究显示，每晚少睡约 80 分钟，会造成体重小幅上涨，久坐行为增多。睡眠不足通过疲劳、活动量减少等多种细微机制影响代谢。不过，延长睡眠并不能保证减重。睡眠需要与饮食、运动协同维持代谢健康；长期轻度睡眠债会慢慢损害身体。来源：今日心理学
今日生词
metabolism 新陈代谢
sedentary 久坐不动的
deprivation 匮乏，缺失
