Is Caffeine Your Productivity Friend?
A year ago, just before my son went off to college, he got a tattoo of a pr’ankh, an Egyptian hieroglyph meaning “house of life.” As a lifelong actor and dancer, he proclaimed his body as the “house of his life” and promised to take care of it for the rest of his days. Among other health-related pledges, he swore off drinking coffee and all caffeine products. By the time