Coffee may be the world’s favorite morning ritual, but doctors are warning that for some people, it could secretly be doing more harm than good. While caffeine offers energy and alertness, experts say it can worsen several underlying conditions — and in some cases, even trigger severe symptoms.

Here are the three health problems where doctors say coffee should be avoided completely:

1. People With Heart Problems or High Blood Pressure
Caffeine temporarily raises heart rate and blood pressure. For those already dealing with hypertension, irregular heartbeats, or coronary artery disease, this added stress can be dangerous. Doctors note that even one strong cup can spike readings and lead to palpitations or chest discomfort.

2. People With Anxiety or Sleep Disorders
Caffeine stimulates the central nervous system, which can make anxiety, panic attacks, and insomnia worse. Even “decaf” coffee has small amounts of caffeine that can interfere with calmness and rest. If you find yourself restless, shaky, or unable to sleep after coffee, your body is likely warning you to stop.

3. People With Stomach or Digestive Issues
Acid reflux, gastritis, and ulcers can all worsen with coffee. Its acidity and stimulating effect increase stomach acid, leading to burning sensations, bloating, and discomfort. Doctors often advise switching to soothing drinks like herbal teas or warm water with lemon instead.

While coffee can have benefits for healthy adults, experts stress that listening to your body is key — and if you fall into any of these categories, it might be time to put the mug down.