Wednesday 30 Jul 2014

Information and opinions presented here do not always represent the views of the American Heart Association.

SimpleScience@Heart: Caffeine may perk up your blood vessels

Published: 9:30 am CDT, November 20, 2013

Caffeine could help your small blood vessels work better.

In a recent study of 27 healthy people 22-30 years old, those who drank 5 ounces of caffeinated coffee had better blood flow in their fingers over the next hour compared to those who had decaffeinated coffee.

Measuring blood flow in a finger gives doctors an idea of how well the inner lining of the body’s smaller blood vessels work.

Researchers aren’t sure how caffeine improves small blood vessel function, but they say it may help open blood vessels and reduce inflammation.

Results of studies on caffeine and heart diseases are conflicting, according to the American Heart Association. However, moderate coffee drinking doesn’t appear to be harmful.

 

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