WATCH: The Moment a Human Embryo Heart Starts Beating

The miracle of life never ceases to amaze us.

One of the most amazing wonders is how the human heart starts beating in the womb. The heart is one of the first recognizable organs to develop. If the heart didn’t grow first, there would absolutely be no way for oxygen and food to circulate around and help an embryo thrive.

Before the heart begins beating, it is nothing more than a sleeping mass of muscles no larger than a poppy seed. After a mere 22 days, one cell instinctively contracts–forcing the rest of the heart cells to beat.

Watch the video above and marvel at the enchanting beauty of existence.