From pricey wearable devices to your phone, it has never been easier to track your daily physical activity, or lack of it. And if you're like many Americans and spend nine-plus hours sitting every day ...

Exercise recommendations typically focus on the duration of physical activity. For example, the World Health Organization advises at least 150 minutes of moderate physical activity per week. A new ...

For many people, a smartwatch seems like a fancy step tracker. It tells you when to stand, counts your steps, and logs your heart rate. But these tiny wrist computers do much more than just support ...