What if you could hit the reset button on life—same body, same memories, just… younger? Well, one tiny jellyfish has already cracked the code. Meet Turritopsis dohrnii, better known as the immortal jellyfish—because it refuses to die like a normal organism. Instead of aging, it de-ages, turning back into a baby version of itself and starting life all over again. Scientists are still trying to figure out how, and the answers could hold the key to aging research, regenerative medicine, and maybe even the future of human longevity.But don’t go signing up for jellyfish DNA just yet—this little cheat code comes with a catch. Dive into the weird world of biological immortality, the science of transdifferentiation, and why this tiny sea creature might be the greatest life hacker of all time.🎧 Listen now to Smartest Year Ever—the show that makes you the most interesting person in the room.Sources: Piraino, S., Boero, F., Aeschbach, B., & Schmid, V. (1996). “Reversing the life cycle: Medusae transforming into polyps and cell transdifferentiation in Turritopsis (Cnidaria, Hydrozoa).” Biological Bulletin, 190(3), 302–312. Martínez, D. E. (1998). “Mortality patterns suggest lack of senescence in hydra.” Experimental Gerontology, 33(3), 217–225. Schmich, J., Kraus, Y., De Vito, D., & Frank, U. (2007). “Induction of programmed cell death in Turritopsis dohrnii.” PLoS ONE, 2(10), e1112. Helm, R. R., Siebert, S., & Ball, E. E. (2013). “Jellyfish transdifferentiation and its implications for regenerative medicine.” Developmental Biology, 377(2), 245–255.

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