仅在几代人之前，身体活动还是日常生活中不可分割的一部分。如今，缺乏身体活动似乎已习以为常。不到两代人之间，英国的身体活动下降了20%，美国下降了32%。在中国，不到一代人的时间里降幅达45%。车辆、机器和技术如今替我们完成了移动。我们在闲暇时间所做的，远远弥补不上已经失去的部分。如果你想进一步了解这项研究，请阅读这份令人警醒的报告。
Just a few generations ago, physical activity was an integral part of daily life. Nowadays physical inactivity seems normal. In less than two generations, physical activity dropped by 20% in the U.K. and 32% in the U.S. In China, the drop is 45% in less than one generation. Vehicles, machines and technology now do our moving for us. What we do in our leisure time doesn’t come close to making up for what we’ve lost. If you would like to find out more on this research, please read the eye-opening report.