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Jim Kwik

“Your brain is the most valuable resource you have. Dave Asprey’s Head Strong program is full of simple tools to help you unlock the mental speed and energy of a modern day superhero. If you want to upgrade your performance, this book is a must read.”

Daniel G. Amen

“Dave Asprey knows what it is like to suffer, but also how to take thoughtful action to heal and protect the most important part of humans: our brains.”

Mark Hyman

“Dave Asprey will make you question everything you thought you knew about nutrition and health. His revolutionary advice will truly make you a healthier, better-looking, smarter version of yourself—we can all be Bulletproof like Dave!”

David Perlmutter, MD, FACN, ABIHM

“Dave Asprey has masterfully utilized leading-edge neuroscience as well as his extensive personal experience to create a user-friendly guide that will clearly fulfill its promise to protect, restore, and enhance brain function”

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