These days it is hard to walk the streets without running into someone who is anxiously looking at their wrist to see if they are on target to reach the magic 10,000 steps.
Is it really a goal worth striving for, or might there be something better?
And where did that figure come from?
You might be surprised to hear it was the result of a 1960s marketing campaign in Japan.
In the run-up to the 1964 Tokyo Olympics, a company came up with a device which they started marketing to the health-conscious… More at The BBC.