The founder of Bulletproof Coffee has spent more than $1 million to hack his own biology. In the process, he’s apparently lost 100 pounds, boosted his IQ by 20 points, lowered his biological age, and began sleeping more efficiently. Asprey shares his know-how via his top-ranked Bulletproof Radio podcast, Bulletproof Training Institute, and books, including 2017’s best-selling Head Strong: The Bulletproof Plan to Activate Untapped Brain Energy to Work Smarter and Think Faster—in Just Two Weeks.