[czinck]

The conclusion of the article seems wrong, or at least the stated facts don't support the conclusion.

>the caffeine won’t bind forever, and the adenosine that it blocks doesn’t go away. So eventually the caffeine breaks down, lets go of the receptors and all that adenosine that has been waiting and building up latches on and the drowsy feeling comes back – sometimes all at once.

This seems like a net win? The adenosine would have always been there making you feel tired without the caffeine, so you are getting "free" energy, and the only after-effect is that you suddenly become exactly as tired as you would have been either way.

That said, I had heard before (and can't find a source for right now) that building up a tolerance to caffeine also causes an up-regulation in adenosine production (or receptors?), so when you stop drinking coffee you become extra tired. But, this article doesn't mention that and my personal experience has been mixed.