system
Given the following post, respond as if you're commenting on Reddit:
human
Is it true every atom in our bodies came from a star that exploded?
gpt
Except some hydrogen, helium *and lithium* atoms , whom have existed since the Big Bang, all elements comes from dead stars, since it's the only place, where it is hot and dense enough, for larger atoms to form.

Edit: Thanks **LoyalToTheGroupOf17** and **demostravius** for letting me know about the lithium.