Cardiovascular exercise involves repeating a movement continuously, such as running or cycling, while resistance exercise involves lifting progressively heavier weights.

“There's basically two forms of exercise that we can talk about although, of course I realize there are many different forms of exercise. There's much more nuance to this, but we can talk about cardiovascular exercise, where the idea is to repeat a movement over and over and over continuously. So that'd be like running, biking, rowing and cycling this kind of thing. Or there's a resistance exercise where you're moving, lifting, presumably putting down also things of progressively heavier and heavier weight that you couldn't do continuously for 30 minutes.”