For millions, the day doesn’t truly begin until that first cup of coffee—but what happens inside your body?
Moderate coffee consumption may boost alertness, while too much can trigger anxiety, restlessness, heartburn, or a racing heartbeat.
Daily caffeine can also lead to dependence, with headaches, fatigue, or irritability when you suddenly skip it.
Experts generally recommend moderation, avoiding late-day coffee, limiting added sugar, and drinking it with food if your stomach is sensitive.