Fitness intensity can be one of the most subjective areas of working out. From “rate of perceived exertion” (or RPE) to the famous “runner’s high” or getting “in the zone,” these metrics can, at best, ...

Sarah Kremen, MD, Sarah Kremen, MD, is director of the Neurobehavior Program at Cedars-Sinai Medical Center in Los Angeles. “Episodic memory is remembering events that have happened, places you’ve ...

Since there is no one-size-fits-all approach to exercise, it helps to have a personalized rating system that allows you to keep track of your own workout. After all, a casual jog for one person might ...