Head Strong: The Bulletproof Plan to Activate Untapped Brain Energy to Work Smarter and Think Faster-in Just Two Weeks

Go 2 days on and 3 days off. If you’re a healthy, nonaddicted person using caffeine, it can be cleared from your system nicely after 3 days. When you have it again, you’ll notice the same benefits as you did during the initial days you used it.

You can take a patented magnesium form called Magtein (like that offered by NOW Foods), which is designed to cross the blood-brain barrier more effectively,

individuals can appear schizophrenic, experiencing paranoia, delusions, and hallucinations. In my case, I had become extremely sensitive to caffeine, to the point that one cup would leave me feeling depressed for a week before the effects wore off. In later discussions with biohacker Dave Asprey, I would discover it might not be the caffeine or the

Eliminate or reduce grains, sugar, and starch. Allowing your brain to run on fat, or more specifically ketones, may increase blood flow to the brain by as much as 39 percent.14 More on this in the next chapter.