• Cardiovascular

    Consumer Health: Caffeine and blood pressure

a clear glass coffee cup sitting on a counter filled with coffeeCaffeine: How does it affect blood pressure?
Caffeine can cause a short, but dramatic, increase in your blood pressure — even if you don't have high blood pressure. Some researchers believe that caffeine could block a hormone that helps keep your arteries widened. Others think that caffeine causes your adrenal glands to release more adrenaline, which causes your blood pressure to increase. Learn more from Dr. Sheldon Sheps, an emeritus Mayo Clinic hypertension and peripheral vascular diseases specialist.

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