«For regular exercisers who do like to do harder workouts, this can be reassuring that there aren't negative consequences,» Panza says. (health.com)
Fitbit is aiming this model at regular exercisers who might want to set target heart rates during workouts, get more accurate calorie burn estimates, and see details on resting heart rate and heart rate trends. (pcworld.com)
Tied to prior bodies of research showing that those who exercise early are the most regular exercisers (59 %) and to some evidence that fat oxidation is increased with exercise most (and some studies show only) if it's done in the morning. (flippingfifty.com)