Caffeine—and Tea—in the Stone Age

It's commonly said that we've used caffeine for centuries, including during the Stone Age, when caffeine-containing plants were chewed for their stimulatory effects. This being pre-history, however, do you ever wonder how we know? Well, archaeology often fills in when historical records don't exist. Yes, there can be misinterpretations and over-interpretations, but sometimes the evidence … Continue reading Caffeine—and Tea—in the Stone Age