HOME >> BIOLOGY >> NEWS
Duke Researchers Finds That Moderate Caffeine Use Boosts Blood Pressure, Potential For Heart Disease

DURHAM, N.C. -- Drinking a few extra mugs of coffee each day can boost blood pressure, heart rate and stress levels enough to increase a person's risk of developing heart disease over a lifetime of moderate caffeine consumption, according to a Duke University researcher.

In a study of 19 habitual coffee drinkers who wore "ambulatory" blood-pressure monitors throughout their daily jobs, the researcher found that the equivalent of four to five cups raised blood pressure an average of five points, compared to days when they consumed only one cup. The effect occurred within an hour of consumption, and the subjects' blood pressure remained elevated throughout the day, the study found.

The volunteers also reported higher levels of stress during the day when they received the higher, 500-milligram dose of caffeine, and they showed a corresponding increase in heart rate, said James Lane, associate research professor of psychiatry at Duke and lead author of the study. Results of the study, funded by the National Heart, Lung and Blood Institute, are published in the May issue of the journal Psychosomatic Medicine.

While a 5-point increase in blood pressure is not excessive, it can have significant clinical implications over time, Lane said. A review of nine major studies of blood-pressure and cardiovascular-disease risk showed that a 5-point difference in diastolic blood pressure -- the lower number used to assess health risk -- was associated with at least a 34 percent increase in the incidence of stroke and a 21 percent increase in the incidence of coronary heart disease.

In another unrelated study, called the Hypertension Detection and Follow-up Program, researchers reported that reducing blood pressure by five points through medication was associated with a 20 percent reduction in 5-year mortality, Lane said.

"The relevant message here is that the more caffeine you consume during the day in coffe
'"/>

Contact: Rebecca A. Levine
Levin005@mc.duke.edu
919-684-4148
Duke University Medical Center
24-May-1998


Page: 1 2 3

Related biology news :

1. Researchers determine genetic cause of Timothy syndrome
2. Researchers find color sensitive atomic switch in bacteria
3. Researchers identify protein promoting vascular tumor growth
4. Researchers devise potent new tools to curb ivory poaching
5. Researchers create nanotubes that change colors, form nanocarpet and kill bacteria
6. Researchers ID chlorophyll-regulating gene
7. Researchers develop fast track way to discover how cells are regulated
8. Researchers identify distinctive signature for metastatic prostate cancer
9. Researchers report new gene test for isolated cleft lip and palate
10. Researchers discover why mutant gene causes colon cancer
11. Researchers identify the genomes controlling elements

Post Your Comments:
(Date:11/18/2014)... WASHINGTON , Nov. 18, 2014  The ... Security Industry Association today jointly announce the formation ... and release of its Identity and Biometric ... (Framework). The Framework received official support from BORDERPOL, ... governments to improve and provide expertise regarding border ...
(Date:11/18/2014)... Md. , Nov. 17, 2014 The Parenteral ... and U.S. regulatory agencies will speak and at least seven ... Metrics Conference at the Omni Shoreham Hotel in ... pleased once again to have significant support from the regulatory ... Europe in our effort to help ...
(Date:11/15/2014)... we may still be a few years away from the ... gain instant access to all that ailed his patients, mobile ... for monitoring and measuring our health are cropping up in ... tad Orwellian to some, but a new survey suggests that ... into their healthcare regime. These are some of ...
Breaking Biology News(10 mins):Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 2Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 3FDA's Janet Woodcock, EMA's Emer Cooke Headline PDA Quality Metrics Conference 2Americans May Be Ready for a Brave New World of Healthcare 2Americans May Be Ready for a Brave New World of Healthcare 3Americans May Be Ready for a Brave New World of Healthcare 4
(Date:11/18/2014)... November 17, 2014 Athena Signature Series: Turning ... Dr. Beverly Emerson, a professor in the Regulatory Biology Laboratory ... most recent discovery points to an “off switch” for drug ... and how her local research is making a global impact ... findings and then join host Cheryl K. Goodman, CEO of ...
(Date:11/18/2014)... FL (PRWEB) November 18, 2014 Brothers ... announced the launch of PAWSitively Curing Cancer, Inc ... This new 501(c) (3) non-profit organization is dedicated to ... donated goes directly to the University of Florida ... partner with PAWSitively Curing Cancer as the recipient of ...
(Date:11/18/2014)... INCLINE VILLAGE, Nev. , Nov. 18, 2014 /PRNewswire/ ... ) today announced that in connection with the acquisition ... approximately $42.7 million in connection with the termination of ... the full principal amount outstanding of $40 million, accrued ... October 2013, PDL entered into a structured financing transaction ...
(Date:11/18/2014)... 2014  Novira Therapeutics, Inc., a privately held biopharmaceutical ... hepatitis B virus (HBV) infection, today announced that ... Scientific Advisory Board (SAB).  "We are ... Christian S. Schade , Chief Executive Officer of Novira.  ... will be invaluable to Novira as our lead core ...
Breaking Biology Technology:PAWSitively Curing Cancer, Inc. Launched By Two Children for National Pet Cancer Awareness Month 2PAWSitively Curing Cancer, Inc. Launched By Two Children for National Pet Cancer Awareness Month 3PDL BioPharma Announces Successful Conclusion of Debt Financing Agreement with Durata Therapeutics 2Novira Therapeutics Announces Appointment of Brian F. Daniels, M.D., to its Scientific Advisory Board 2Novira Therapeutics Announces Appointment of Brian F. Daniels, M.D., to its Scientific Advisory Board 3
Cached News: