How Many Heart Beats in a Lifetime?

heartbeatMy grand daughter asked me “How many times does a heart beat in a lifetime?” I said that’s a good question so let’s do the math. If we average 70 beats a minute x 60 minutes x 24 hours x 365 days x 100 years = 3,679,200,000 (that’s 3.68 billion).

She said “Wow I better take care of my heart if it has to do all that work.”