How Fast Is Heart Muscle Contraction?

Your heart muscle contracts at about 5 cm per second during each beat — roughly 100,000 times per day, every day of your life. Over a lifetime that adds up to 2.5 billion beats, all without conscious effort.

Your heart will beat roughly 2.5 billion times in a lifetime — without you ever asking it to.

• Slightly faster than a Mars rover
• Roughly 100,000 beats every day