HOME >> MEDICINE >> NEWS
Morning Coffee Boosts Blood Pressure, Stress Hormones All Day

SAN DIEGO -- People who drink four or five cups of coffee throughout the morning have slightly elevated blood pressure and higher levels of stress hormones all day and into the evening, creating a scenario in which the body acts like it is continually under stress, according to a group of Duke University Medical Center scientists.

In a study of 72 habitual coffee drinkers, the researchers found that subjects produced more adrenaline and noradrenalin and had higher blood pressure on days when they drank caffeine compared with days they abstained. The two stress hormones are vital to helping the body react quickly in times of danger or stress, but they can damage the heart over a lifetime of heightened production, said James Lane, associate research professor of psychiatry at Duke.

Lane prepared results of his study, funded by the National Heart, Lung and Blood Institute, for presentation Thursday to a meeting of the 1999 Society of Behavioral Medicine.

"Moderate caffeine consumption makes a person react like he or she is having a very stressful day," Lane said in an interview before the meeting. "If you combine the effects of real stress with the artificial boost in stress hormones that comes from caffeine, then you have compounded the effects considerably."

During the two-week study, the subjects experienced, on average, a 32 percent increase in adrenalin and a 14 percent increase in noradrenaline on days when they consumed caffeine. Their blood pressure rose an average of 3 points.

Lane's study builds on smaller ones in which he found that caffeine boosted blood pressure, heart rate and stress hormones in subjects who drank 4 to 5 cups of caffeine per day. In the current study, Lane replicated those findings and added to them by showing that subjects' blood pressures and stress hormone levels stayed elevated until bedtime, even though they last consumed caffeine between noon and 1 p.m.

Occa
'"/>

Contact: Rebecca A. Levine
Levin005@mc.duke.edu
919-684-4148
Duke University Medical Center
4-Mar-1999


Page: 1 2 3

Related medicine news :

1. Morning headaches associated with depression, anxiety disorders
2. Coffee drinking associated with reduced risk of diabetes
3. Coffee drinking elevates plasma homocysteine and risk factors for coronary heart disease
4. Coffee addicts at reduced risk of type 2 diabetes?
5. Coffee: a cause of neonatal seizures?
6. Interleukin-2 Boosts Cancer Vaccine Effectiveness In Mice
7. New Drug Boosts The Power Of Traditional Cancer Therapies, UF Animal Studies Show
8. Bi-Monthly Boosts Of Aspirin Benefit Heart
9. NIAID Stops AIDS Study Prematurely Because Drug Cocktail Boosts Survival
10. Blood pressure treatment could cut risk of strokes and heart attacks
11. Blood protein predicts risk of heart attack

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Morning Coffee Boosts Blood Pressure Stress Hormones All Day

(Date:4/14/2014)... been made in chemotherapy over the past decade, but ... continues to be a major challenge. , Nanotechnology ... the use of nanocarriers, or capsules, that can transport ... body. , The catch? These carriers are tiny, and ...
(Date:4/14/2014)... the 20th century, is currently losing a lot of ... at the University of South Carolina have just reported ... against so-called "superbugs." , Bacteria have been chipping away ... since their first wide-scale use as antibiotics in the ...
(Date:4/14/2014)... web information on colorectal cancer is too difficult for ... appropriate risks to and concerns of patients, a study ... a review of a dozen popular websites, most of ... were written beyond the recommended sixth-grade reading level, while ...
(Date:4/14/2014)... Inc., announced today a publication demonstrating that the company,s ... cells exposed to plasma samples of patients with a ... "TNT003, an inhibitor of the serine protease C1s, prevents ... was published on-line in the journal Blood ...
(Date:4/14/2014)... Child Development Institute have released their new study of ... success in kindergarten. According to FPG,s report, students enrolled ... of learning. , "Children are progressing at an ... than expected for normal developmental growth," said senior scientist ...
Breaking Medicine News(10 mins):Health News:Nano shake-up 2Health News:Penicillin redux: Rearming proven warriors for the 21st century 2Health News:Penicillin redux: Rearming proven warriors for the 21st century 3Health News:Website information on colon cancer too complex, fails to address key concerns 2Health News:Website information on colon cancer too complex, fails to address key concerns 3Health News:Ex vivo efficacy of C1s antibody as Complement inhibitor in cold agglutinin disease 2Health News:Study gives high marks to NC Pre-K program 2
(Date:1/15/2014)... , Jan. 15, 2014  Manufacturers, suppliers and distributors ... able to protect their most important business assets, ... ) Because of the highly-competitive ... remains one of the most litigious industry sectors ...
(Date:1/15/2014)... 2014 MultiCell Technologies, Inc. (OTC Bulletin Board: ... application concerning composition of matter, biological targets, mechanism of ... death.  This patent application describes a ... molecules (VSRNAs) which interfere with the basic homeostatic cellular ...
(Date:1/15/2014)... 2014  According to Millennium Research Group (MRG), the ... the United States and European ... expand moderately through 2022, with embolization particles representing ... interest in drug-eluting beads (DEBs) and radioembolization spheres ...
Breaking Medicine Technology:Intellectual Property Insurance for Medical-related Products and Services 2MultiCell Technologies Files Patent Application Covering New Class of RNA Therapeutics 2MultiCell Technologies Files Patent Application Covering New Class of RNA Therapeutics 3US and European Transcatheter Embolization and Occlusion Device Market to Surpass $1.6 Billion by 2022 2US and European Transcatheter Embolization and Occlusion Device Market to Surpass $1.6 Billion by 2022 3
Cached News: