Personal Liberty Digest™ will be upgraded this weekend to reflect a dynamic new look and mobile-friendly viewing to enhance your experience! Plus, we'll be providing even more of the compelling content you've come to expect, delivered in a whole new way!

  Comments Subscribe to Personal Liberty News Feed Subscribe to Personal Liberty

Coffee May Help Small Blood Vessels Work Better

DALLAS (UPI) — he caffeine in a cup of coffee may help small blood vessels work better, but it isn’t clear why, researchers in Japan say.

Study leader Dr. Masato Tsutsui, a cardiologist and professor in the pharmacology department at the University of the Ryukyus in Okinawa, Japan, said the study involved 27 healthy adults. Researchers said they found drinking a cup of caffeinated coffee significantly improved blood flow in a finger, which is a measure of how well the inner lining of the body’s smaller blood vessels work.

Specifically, participants who drank a cup of caffeinated coffee had a 30 percent increase in blood flow over 75 minutes compared to those who drank decaffeinated coffee, Tsutsui said in a statement.

Compared to decaffeinated coffee, caffeinated coffee slightly raised participants’ blood pressure and improved vessel inner lining function, while heart rate levels were the same for the two groups.

“This gives us a clue about how coffee may help improve cardiovascular health,” Tsutsui said.

It is unclear how caffeine works to improve small blood vessel function, but Tsutsui suggested caffeine might help open blood vessels and reduce inflammation.

“If we know how the positive effects of coffee work, it could lead to a new treatment strategy for cardiovascular disease in the future,” Tsutsui said.

Previous studies showed drinking coffee was linked to lower risk of dying from heart disease and stroke, and high doses of caffeine might improve the function of larger arteries.

The findings were presented at the American Heart Association’s Scientific Sessions in Dallas.

UPI - United Press International, Inc.

Since 1907, United Press International (UPI) has been a leading provider of critical information to media outlets, businesses, governments and researchers worldwide.

Facebook Conversations

Join the Discussion:
View Comments to “Coffee May Help Small Blood Vessels Work Better”

Comment Policy: We encourage an open discussion with a wide range of viewpoints, even extreme ones, but we will not tolerate racism, profanity or slanderous comments toward the author(s) or comment participants. Make your case passionately, but civilly. Please don't stoop to name calling. We use filters for spam protection. If your comment does not appear, it is likely because it violates the above policy or contains links or language typical of spam. We reserve the right to remove comments at our discretion.

Is there news related to personal liberty happening in your area? Contact us at


Sign Up For Personal Liberty Digest™!

PL Badge

Welcome to,
America's #1 Source for Libertarian News!

To join our group of freedom-loving individuals and to get alerts as well as late-breaking conservative news from Personal Liberty Digest™...

Privacy PolicyYou can opt out at any time. We protect your information like a mother hen. We will not sell or rent your email address to anyone for any reason.