Excerpt
PROLOGUE IT DOESN’T COME in a needle. It doesn’t come in a baggie. It comes in a mug. Steam curls up. You take a sip. You call it “morning.” But that right there? That’s your fix. Caffeine is a drug. Not metaphorically. Not loosely. Legally. Medically. Pharmacologically. It alters your brain chemistry. It has a half-life. It creates dependency. It hijacks your adenosine receptors like a lockpick. You get a little boost. Then a crash. Then another hit. Then another day. But nobody treats it like heroin. Nobody talks about it like meth. It’s not even in the same conversation. Because caffeine got the best PR team in history: moms, offices, cafés, grandmas, the Pope. It’s not a drug, it’s...