If you're looking for a challenging, calorie-burning, engaging workout, should you use a treadmill or a stair climber? Either one is can be a good option, fitness experts say, but they're not always ...

“Take the stairs” is common advice for getting more activity into your daily routine — and for good reason. Aside from the fact that stairs are typically easy to access, climbing them is a low-impact ...

OK, what is a calorie, anyway? It’s a unit of energy, defined as the amount of energy needed to raise the temperature of 1 liter of water by 1 degree Celsius. (This is your common “food calorie”: ...

For on-demand workouts — plus fitness challenges, meal plans and inspiration — download the Start TODAY app! “Take the stairs” is common advice for getting more activity into your daily routine — and ...