‘When you kill it, it doesn’t die’: the jellyfish that has cracked the secret of immortality
www.theguardian.com
Turritopsis dohrnii has the ability to turn back into a baby jellyfish and grow up all over again

Inspired by this article about a jellyfish that doesn’t die of old age, injury or poor conditions, it just reverts back to a juvenile state and is reborn genetically identical. If you could be reborn, as you, would you want to?

Edit: Just the physical you, genetic and presumably epigenetic, no memory.