Oh, my mind used to have a field day trying to wrap around that concept!
Cells, about every 7 years...
Wow, is that true? Incredibly interesting... Well just think, everything we're made of is essentially, "stardust," as Sagan called it. I mean, we're made up of the universe. hah. Cosmic dust that formed Earth and all of us.
Not at the moment no,but I know one day it will hit me and I'll be mind blown.