Exercise

A recent Harvard study involving more than 16,000 older women found that those who got at least 4,400 steps a day greatly reduced their risk of dying prematurely when compared with less active women. The study also noted that the longevity benefits continued up to 7,500 steps but leveled off...

The greatest gains in longevity — 9.35 years — and health span — 9.46 years — were achieved with a combination of lifestyle changes including moderate exercise, quality sleep, and a healthy diet.

10,000 steps is not based on medical or scientific research. 10,000 steps became the unofficial benchmark for our daily steps goal in the 1960s, thanks to a Japanese pedometer. The Japanese character for 10,000 looks like a person walking, so it just sort of became the default over time.