The Heart: an incredible machine

The Human Heart Poster Series FRAMED, 17" x 22" Posters, 5 Print Set in Black Metal Frames - Heart Structure, Heart Functions, Pulmonary and Systemic Circulation, Maintaining a Healthy Heart, and Intriguing Facts and Figures about the Heart.

Here are some basic facts for you:

Normal Heart rate ranges from 60-100 beats per minute

Average Age of male in the USA is about 78 years

So how many times does this person's heart beats in a lifetime?

2,459,808,000 to  3,153,600,000 beats

In most cases the "machine" never fails

I don't think there is a machine this powerful.