CHICAGO — Roll up a sleeve for the blood pressure cuff. Stick out a wrist for the pulse-taking. Lift your tongue for the thermometer. Report how many minutes you are active or getting exercise. Wait, ...

Roll up a sleeve for the blood pressure cuff. Stick out a wrist for the pulse-taking. Lift your tongue for the thermometer. Report how many minutes you are active or getting exercise. Wait, what? If ...

You don’t need to be working out for longer, but you should probably be working harder—in spurts, at least. Studies have shown that interval training can help people burn more fat, and increase ...