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:7/29/2014)... two of the major disciplines behind Jurassic Park is ... stunning photographs and unique illustrations. , Fossil Insects, by ... incredible preservation and diversity of fossilised insects from around ... fossils can tell us about the ancient and modern ... the mosquito in Jurassic Park, many of the hundreds ...
(Date:7/28/2014)... Food and Drug Administration (FDA) for other purposes can ... human cells, including those that cause Legionnaires, disease, brucellosis, ... mBio , the online open-access journal of the American ... non-antibiotic drugs that could one day help curb bacterial ... list inhibit the growth of at least three of ...
(Date:7/28/2014)... people in the United States have a circulatory problem ... be painful and may even require surgery in serious ... wasting and, in turn, limb amputation. , At The ... Medical School, scientists tested a non-surgical preventative treatment in ... associated with increased blood circulation. Their proof-of-concept study ...
Breaking Biology News(10 mins):Unique images bring fossil insects back to life 2New route to identify drugs that can fight bacterial infections 2Scientists discover genetic switch that can prevent peripheral vascular disease in mice 2
(Date:7/28/2014)... (PRWEB) July 28, 2014 The Workgroup ... authority on the use of health IT to create ... Health Plan Identifier (HPID) Workgroup has developed an ... Health Plan and Payer?” The HPID Workgroup, a part ... with the Centers for Medicare and Medicaid Services (CMS) ...
(Date:7/28/2014)... 28, 2014 Proove Biosciences , ... be exhibiting data and research conducted through their latest ... Intervention Society’s (ISIS) 22nd Annual Scientific Meeting. The ... Hyatt Regency, in Orlando, Florida. , The ... competence of physicians who care for patients suffering specificity ...
(Date:7/28/2014)... 2014 According to ... (Consumables, Instruments, Services), Methods (Phenotypic, Genotypic), Applications (Pharmaceutical, Diagnostic, ... Characterization) - Global Forecasts to 2019" published ... estimated at $896.5 Million in 2014 and ... 2019, growing at a CAGR of 5.9% ...
(Date:7/28/2014)... , July 28, 2014   Propeller Health ... disease, announced the hire of Brad Towle ... will be responsible for driving the company,s sales growth, ... experience in healthcare, and specifically his past role in ... to the company at this pivotal time in the ...
Breaking Biology Technology:WEDI’s HPID Workgroup Announces Release of Issue Brief: “What is the Difference Between a Health Plan and Payer?” 2Proove Biosciences Exhibits Industry Leading Data and Research at International Spine Intervention Society’s 22nd Annual Scientific Meeting 2Microbial Identification Market worth $1,194.1 Million by 2019 2Microbial Identification Market worth $1,194.1 Million by 2019 3Propeller Health Hires Brad Towle as Senior Vice President of Business and Client Development 2
Cached News: