Credit to you if you've taken up walking—even more credit if you haven't been an exercise person. Taking a walk is a lot better than sitting around all day, as you know. 

My friend's cardiologist father likes to ask people: what four-letter word is the secret to good health? The answer: MOVE. 

To get more out of your walk, pick up the pace.  That's what I mean by better steps.

It's more efficient, too. A brisk walk gets you about the same benefit in half the time. 

If you're a fan of hitting 10,000 steps in a day, go for it. But did you know that "10,000" steps was originally a marketing ploy, by a Japanese pedometer maker?

Your body wants to be pushed. It wants to be challenged. And when you take care of yourself in that way, your mind likes it too. You get a lift!