Exercise does not waste your heartbeats, but saves them, experts explain Times of IndiaTrump thinks the body works like a battery. Scientists have shown why he’s wrong The Sydney Morning HeraldFitter hearts beat less: How exercise may add years to life News-MedicalHeart rate could add years to your life The AustralianHow Exercise Can Protect Your Heartbeats Instead of Wearing Them Out Bioengineer.org
