In the 2010s, Fitbits became hot tech accessories and each came with 10,000 steps a day as a default goal, reinforcing that measurement as a health guideline. But 10,000 steps a day was never a ...

If you’ve ever circled the apartment frantically looking for a lost phone, stumbled down the stairs to answer the door for a delivery, or checked on that houseplant at the end of the hall one too many ...

Physical activity (PA) is inversely associated with obesity but the effect has been difficult to quantify using questionnaires. In particular, the shape of the association has not yet been well ...