Endurance Exercise: Keeping the Mitochondria Furnaces Burning

What immediately comes to mind when someone mentions exercise? Guilt? Rationalizing? (I’m still pretty healthy even though I don’t exercise. A lot of my friends don’t exercise and they seem healthy.) Of course, not everyone should run miles at a time or lift massive weights. But there is compelling evidence to support the significant health benefits, both physical and mental, from a daily regimen of exercise appropriate for you.