The six-part series will showcase the "Avengers: Endgame" star on an "epic mission to discover how we all can live healthier, smarter and longer lives."
The show is produced by filmmaker Darren Aronofsky and Jane Root.
"Basically, I was somehow convinced to volunteer myself as a human guinea pig and endure a series of mental and physical challenges across the globe, all for the sake of science," Hemsworth says. "We're hoping to shed some light on new ideas and emerging science with the focus on extending a healthy life span. Production starts soon, so wish me luck."
The show will run on National Geographic, but a release date has not been announced.