Why China is the least lazy country in the world​?

Speakers: Li Ningjing and Sam Duckett  

China is the least lazy country in the world [Photo: Baidu]

US scientists have amassed "planetary-scale" data from people's smartphones to see how active we really are. The Stanford University analysis of 68 million days' worth of minute-by-minute data showed the average number of daily steps was 4,961.

According to the statistics, China is the least lazy Country in the world.

Most smartphones have a built-in accelerometer that can record steps and the researchers used anonymous data from more than 700,000 people who used the Argus activity monitoring app.

Scott Delp, a professor of bioengineering and one of the researchers, said: "The study is 1,000 times larger than any previous study on human movement.” 

The key ingredient was "activity inequality" It is like wealth inequality, except instead of the difference between rich and poor, it's the difference between the fittest and laziest.

The audio clip is from Studio+, produced by CRI.