image creditCaffeine seems so simple, even if you're a veteran user. You drink it, you get amped up for a short period, and you inevitably come down a bit when it wears off - or so you think. But caffeine is a more subtle substance than we give it credit for. Knowing how it works on your body and brain, and how it is most effective, can give you an edge at concentrating, while still keeping the jittery edge off.
Caffeine is a trickier substance than we generally acknowledge. Here's what you need to know to get more out of caffeine - starting with a suggestion to go cold turkey.The Presurfer
