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Keeping a lot of light on while you snooze — such as from a television or bright nightlight — has been linked with an increased risk of weight gain and obesity. 睡觉时开着大量的灯——比如看电视或开着明亮的夜灯——会增加体重增加和肥胖的风险。 Specifically, sleeping with a television or light on in the room was positively associated with gaining five kilograms, or 11 pounds, over a five-year period among women in a new study published in the medical journal JAMA Internal Medicine on Monday. 周一，医学杂志《美国医学会内科杂志》(JAMA Internal Medicine)上发表的一项新研究表明，在5年的时间里，在房间里看电视或开灯睡觉与女性增重5公斤(合11磅)呈正相关。 "There was a 17% chance of gaining the five kilograms — after we adjusted for confounding factors," said Dale Sandler, a senior investigator at the National Institute of Environmental Health Sciences in North Carolina and senior author of the study. 北卡罗莱纳国家环境健康科学研究所的高级研究员、该研究的资深作者戴尔·桑德勒说:“在我们对混杂因素进行调整后，增加5公斤体重的几率为17%。” In addition, there was a 22% chance of becoming overweight and a 33% chance of becoming obese, she added. 她补充：“此外，有22%的几率超重，有33%的几率会肥胖。” Obesity means having too much body fat and overweight means weighing too much, according to the US National Library of Medicine. Both overweight and obesity are based on your body mass index but "obese" generally means having a much higher BMI. | 
