10 thousand steps a day has become a fitness mantra for many of us. But who came up with that number and does it actually make a positive difference to our health?
A man who knows a fair bit about how many steps are good for the heart is cardiologist Professor Rob Doughty of Auckland City Hospital. He's also the Heart Foundation Chair at Heart Health at the University of Auckland and Auckland City.
Garmin sports watch assisting with self-tracking Photo: U3177230, CC BY-SA 4.0
