Why Does Caffeine Make Me Tired Instead of Awake?
It’s 2:45 PM. You’re staring at your screen, rereading the same sentence for the third time. Your energy feels flat, your focus drifts, so you grab another cup of coffee. For about 20 minutes, it works. You feel sharper, more alert. But for some people, the effect can feel completely different—even immediate. In some cases, … Read more
