第2872期:A longer daily walk could be better for your heart

The study looked at more than 33,000 adults aged 40 to 79 in the UK who walked fewer than 8,000 steps a day. The researchers, from the University of Sydney and the Universidad Europea in Spain, tracked their health over eight years.这项研究分析了英国 33000 多名成年人，他们的年龄在 40 岁到 79 岁之间，每天走路的步数少于 8000 步。来自悉尼大学和西班牙马德里欧洲大学的研究人员在八年间对这些人的健康状况进行了追踪。

People who walked in longer stretches had a lower risk of heart problems than those who walked in short bursts. Whether that's because they were fitter to begin with isn't fully clear from the study, but the researchers did try to control for this by taking into account factors such as whether the person smoked, was obese or had high blood pressure.每次走路时间更长的人比多次短距离走路的人出现心脏问题的风险更低。研究并未判明这是否是由于走路时间更长的人原本身体就更健康，但研究人员确实已经尝试了通过把多种因素考虑在内来控制这个变量，比如这个人是否曾吸烟、肥胖或患有高血压。

Even among the least active, those who walked under 5,000 steps a day, longer walks appeared to make a difference.即使是在最不活跃的、每天步行少于 5000 步的人当中，进行更长距离的步行也显示出了一定的效果。