Why Coffee Might Make You Sleepy
Coffee. The magical morning potion. The fuel of productivity. The ultimate stay-awake juice. Except... sometimes it doesn’t work that way. Ever had a cup of coffee only to feel more tired instead of energized? You take a sip, expecting a jolt of alertness, but instead, a yawn sneaks up on you. Before you know it, you’re battling the urge to nap. Frustrating, right? You’re not alone. This happens to a surprising number of people. But why? Shouldn’t coffee wake you up instead of lulling you into drowsiness? Let’s break it down. How Caffeine Should Work To understand why coffee might make you sleepy, we need to talk about adenosine—your brain’s built-in sleep signal. Throughout the day, adenosine builds up, making...