This is a reblog from theoretical astrophysicist Ethan Siegel’s blog called, “Going Nuclear: How stars die”. You should read it.
Here’s a snippet:
“After all, the universe required ten billion years of evolution before life was even possible; the evolution of the stars and the evolving of new chemical elements in the nuclear furnaces of the stars were indispensable prerequisites for the generation of life.” -John Polkinghorne
There are close to a whopping 1028 atoms in your body. And while just over half of them are hydrogen atoms, all the rest of them — from Lithium to Uranium – were made inside of stars, and ejected back out into the Universe, where, billions of years later, they made you.