一项新研究表明人们每周久坐超 60 小时，美国研究人员以 1000 名 28 至 49 岁人群为对象，研究久坐对衰老影响，参与者日均久坐 9 小时，每周中等强度运动 80 至 160 分钟、高强度运动少于 135 分钟，研究人员检测其 BMI 和胆固醇水平，结果显示久坐时间越长身体在健康指标上越 “老”，每日 20 分钟中等强度运动作用不大，日坐 8.5 小时且运动少于 20 分钟的人有代谢或心脏问题中高风险，而每日 30 分钟高强度运动的人其胆固醇和 BMI 水平与少坐 5 至 10 岁不运动的人相似，研究人员称年轻人应养成有益长期健康的习惯。 听力练习：为帮助大家提升实战英语听力能力，后续文章会融入多种英语口音，正常语速，挑战一下能听懂多少！ |
Study Finds Prolonged Sitting Can Make You Age Faster
Between office jobs, commutes and relaxing at home, people spend a lot of time sitting down — more than 60 hours a week, according to a new study.Researchers in the US wanted to understand how sitting for a long time can impact aging by looking at things like body mass index (BMI) and cholesterol.The study included 1,000 people aged 28 to 49.When asked how much time they spend sitting down each day, the average answer was nine hours, although some sit for up to 16 hours a day.On average, participants also did between 80 minutes and 160 minutes of moderate exercise every week, and less than 135 minutes of vigorous exercise.The researchers also looked at participants' BMIs and cholesterol levels, because these are markers that can provide information about someone's metabolism and heart health.The results showed that the longer participants spent sitting in their day-to-day lives, the "older" their bodies looked in terms of these health markers.Doing 20 minutes of moderate exercise daily — the minimum recommended by the World Health Organization — did little to counter this.Based on these results, the researchers said those who spend 8.5 hours a day sitting down, and exercise for fewer than 20 minutes a day, could be at "moderate to high risk" of metabolic or heart problems.However, the researchers found that those who did 30 minutes of vigorous exercise every day had cholesterol and BMI levels similar to those of people five to 10 years younger who sat as much as they did, but didn't exercise.Ryan Bruellman, one of the researchers, said young people often think they're safe from the impacts of aging because they have a good metabolism.But, he said, "This is the time to build habits that will benefit health over the long term."![]()
