Adding an extra hour every week of physical activity may lower the chance of developing the most common type of irregular heartbeat (arrythmia) by 11%, a study shows.

Adding an extra hour every week of physical activity may lower the chance of developing the most common type of irregular heartbeat (arrythmia) by 11 percent, a new study shows.

Don't sweat it! You can get ahead on your holiday shopping with savings on top smartwatches from Apple, Fitbit, Garmin, Samsung, and more.