Optimize With Brian Johnson | More Wisdom In Less Time

Do you know how caffeine actually works? Most of us think that caffeine gives us energy. But what it actually does is mask our fatigue—making us feel more energized than we actually are. Here’s the quick story on what’s going on behind the scenes. One of the by-products of being awake and having your neurons fire is a neurotransmitter called adenosine. As adenosine accumulates in your brain, you get tired—cueing you to go to sleep to recover. Caffeine is structurally very similar to adenosine. So similar, in fact, that it can actually sneak into those little adenosine receptors and block the adenosine from doing its job of letting us know we’re tired. And voila! You feel energized. Obviously, that’s pretty cool. (Hah.) Today’s +1: Two things we want to consider as we optimize our caffeine intake. 1. We want to know that when we use caffeine we’re “borrowing” energy. Therefore, we’d be wise to use caffeine strategically rather than habitually. If we need caffeine to get going in the morning, what we