Long healthy life: Major studies released

Two long-term studies of tens of thousands of people have confirmed what you probably know — that exercise is good for you.

But they go further, associating moderate exercise, as measured by frequency of footsteps per day, with lower mortality rates. They also suggest there’s a balance to be had in your exercise regimen — either too little or too much can be detrimental to long life. Doug McKelway has more on where the sweet spot lies.