60 heartbeats per minute, 3,600 per hour, 86,400 per day.

Round up to 630,000 heartbeats in a week and 30 million heartbeats in a year.

At that rate you get through your first billion heartbeats in about 33 years, 2 billion in about 66 years and 3 billion in about 99years. How many heartbeats will you aim for?