Navigation Links
Can Green Tea, Coffee Reduce Stroke Risk?

By Steven Reinberg
HealthDay Reporter

THURSDAY, March 14 (HealthDay News) -- Many people take coffee or tea breaks throughout the day, and that simple act may help them reduce their risk for stroke, Japanese researchers report.

This study of about 83,000 people suggests that drinking green tea or coffee daily might lower stroke risk by about 20 percent, with even more protection against a specific type of stroke.

"The regular action of daily drinking [of] green tea and coffee is a benefit in preventing stroke," said lead researcher Dr. Yoshihiro Kokubo, chief doctor in the department of preventive cardiology at the National Cerebral and Cardiovascular Center, in Osaka.

"If you cannot readily improve your lifestyle, try to prevent stroke by drinking green tea every day," he said.

Although it isn't certain why coffee and tea may have this effect, Kokubo thinks it might be due to certain properties in these drinks that keep blood from clotting.

In addition, green tea contains catechins, which have an antioxidant, anti-inflammatory effect. Some chemicals in coffee, such as chlorogenic acid, may cut the risk of stroke by lowering the chances of developing type 2 diabetes, he explained.

Coffee also contains caffeine, which may have an impact on cholesterol levels and blood pressure, and may cause changes in insulin sensitivity, which affects blood sugar, he added.

One expert, Dr. Ralph Sacco, past president of the American Heart Association, cautioned that this type of study cannot say for sure that the lower risk of stroke is really the result of drinking coffee or tea.

"Such association studies are still limited in [the] ability to tell whether it is some ingredients in the coffee or tea or some other behavior common to coffee and tea drinkers that is driving the protective effects," said Sacco, chairman of neurology at the University of Miami Miller School of Medicine.

"There have been other studies, however, that have suggested some beneficial effects of coffee and tea on brain health, so the evidence is accumulating that there are some important simple dietary ways we can improve our health," Sacco said.

The report was published online March 14 in the journal Stroke.

For the study, Kokubo's team collected data on roughly 83,000 men and women, 45 to 74 years old, asking about how much green tea and coffee they drank.

Over the course of the study, the researchers kept track of hospital records, death certificates and data about deaths from heart disease and stroke.

During an average of 13 years of follow-up, they found that those who had at least one cup of coffee a day lowered their risk for stroke about 20 percent.

And, compared to people who rarely drank green tea, people who drank two to three cups a day had a 14 percent lower risk of stroke and people who drank at least four cups lowered their risk by 20 percent.

The risk for a type of stroke called a hemorrhagic stroke, in which a blood vessel in the brain bursts and blood floods part of the brain, was cut by 32 percent among those who drank a cup of coffee or two cups of green tea daily. About 13 percent of strokes are hemorrhagic strokes, the researchers noted.

To be sure their findings related to coffee and tea, Kokubo's group took into account factors such as age, sex, smoking, alcohol, weight, diet and exercise. People who drank green tea were more likely to exercise compared to non-drinkers, they noted.

More information

To learn more about stroke, visit the U.S. National Library of Medicine.

SOURCES: Yoshihiro Kokubo, M.D., Ph.D., chief doctor, department of preventive cardiology, National Cerebral and Cardiovascular Center, Osaka, Japan; Ralph Sacco, M.D., past president, American Heart Association, and chairman, neurology, University of Miami Miller School of Medicine; March 14, 2013, Stroke, online

Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. U.S. Gives Green Light to Publish Controversial Bird Flu Research
2. Why are some people greener than others?
3. Sites, LLC Announces the Celebration of Green Van Dyck: Director of Sales and Internet Marketing
4. Green Tea Weight Loss Results and Health Benefits Revealed
5. Pink and Blue are Out - It’s Time to GREEN Your Nursery
6. GTC Green Cleaning Products Now Available from UNFI - United Natural Foods
7. Green biased yellow fever swept through Irish Immigrants in 19th century US
8. Penn study finds with vacant lots greened, residents feel safer
9. Greening Vacant Lots May Boost Safety
10. Green tea compound shows promise for tackling cancer
11. Many trendy microgreens are more nutritious than their mature counterparts
Post Your Comments:
Related Image:
Can Green Tea, Coffee Reduce Stroke Risk?
(Date:11/26/2015)... (PRWEB) , ... November 26, 2015 , ... Indosoft Inc., ... inclusion of an application server to improve system efficiency and reliability. , The new ... many of these standards, the system avoids locking itself into a specific piece of ...
(Date:11/25/2015)... ... November 25, 2015 , ... Medical ... once again for its stellar workplace culture with the company’s Cincinnati office being ... Medical Solutions’ Cincinnati office was named a finalist in Cincinnati Business Courier’s 13th ...
(Date:11/25/2015)... ... November 25, 2015 , ... For the first time, Vitalalert is ... One Beat ” campaign. The partnership between the two groups began in 2014 with ... International’s cause. , MAP International was founded in 1954 and is an international Christian-based ...
(Date:11/25/2015)... ... November 25, 2015 , ... ... and athletic programs, launches new Wimbledon Athletics Facebook page to educate ... athletes for unsuspected cardiac abnormalities. About 2,000 people under the age of 25 ...
(Date:11/25/2015)... Calif. (PRWEB) , ... November 25, 2015 , ... Beddit® ... and Beddit Classic sleep tracking systems. The new app features a more intuitive SleepScore™ ... and understand how well you slept. The SleepScore is created by a proprietary algorithm. ...
Breaking Medicine News(10 mins):
(Date:11/25/2015)... 25, 2015  The American Academy of Pediatrics ... and the March of Dimes cheered today,s signature ... Infants Act of 2015 (S.799), which takes ... born exposed to drugs, such as opioids, and ... all three organizations have worked together leading advocacy ...
(Date:11/25/2015)...  Henry Schein, Inc., the world,s largest provider of ... and animal health practitioners, will unveil at the Greater ... ConnectDental® Pavilion , which brings together for the first ... to help any practice or laboratory enter the digital ... schedule of experts appearing at the Pavilion. --> ...
(Date:11/25/2015)... DUBLIN , Nov. 25, 2015 ... global pharmaceutical company, and Rugen Therapeutics, a start-up ... treatments for unmet CNS disorders and funded by ... that they have entered into an exclusive collaboration ... therapies for Autism Spectrum Disorders (ASD) and Obsessive ...
Breaking Medicine Technology: