Ask any athlete, doctor, gym rat or weekend warrior and they’ll tell you, you’ve gotta do cardio. Forget relying on the clunky, old iron weights. You want to burn fat? Cardio. Want to increase your endurance? Cardio. Want to keep your heart from exploding at age 45? Cardio. Don’t want to end up the poster boy for erectile dysfunction? Cardio.
It seems cardio is the magic…
