Do mobile devices tell our fitness truths?

Stanford cardiologist Alan Yeung and his colleagues are mapping the second-by-second minutiae of how we move, using the mobile and electronic devices we carry around with us 24 hours a day.

Apple iPhone
Photo: Apple

He’s not just counting steps or measuring distance. He’s carrying out research on all sorts of measures, including our velocity and orientation in space.

The results so far show that America’s sedentary lifestyle may be worse than we thought. Early data show that not only we not exercising, but a large percentage of us are barely moving at all.

And that’s only a small part of the results – read the full story at The Washington Post.