Document Detail

The effects of caffeine on ambulatory blood pressure, heart rate, and mood in coffee drinkers.
MedLine Citation:
PMID:  9132505     Owner:  NLM     Status:  MEDLINE    
The present study examined the effects of caffeine, as typically ingested through coffee, on ambulatory systolic and diastolic blood pressure (BP), heart rate, and mood. Normotensive coffee drinkers wore a BP monitor for two 24-hr periods, consuming decaffeinated coffee. Each cup was supplemented with 125 mg caffeine or cornstarch. Systolic and diastolic BPs were elevated on the day caffeine was consumed (maximum, 3.6 and 5.6 mm Hg, respectively), most notably shortly after ingestion. Heart rate was higher overnight following caffeine consumption. Negative Affectivity was also increased by caffeine, but Positive Affectivity and tiredness were unaffected.
P J Green; J Suls
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of behavioral medicine     Volume:  19     ISSN:  0160-7715     ISO Abbreviation:  J Behav Med     Publication Date:  1996 Apr 
Date Detail:
Created Date:  1997-04-30     Completed Date:  1997-04-30     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7807105     Medline TA:  J Behav Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  111-28     Citation Subset:  IM    
Department of Psychology, Spence Laboratories, University of Iowa, Iowa City 52242, USA.
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MeSH Terms
Affect / drug effects*
Blood Pressure / drug effects*
Blood Pressure Monitors*
Caffeine / pharmacology*
Circadian Rhythm / drug effects
Double-Blind Method
Heart Rate / drug effects*
Personality Inventory
Grant Support
Reg. No./Substance:
0/Coffee; 58-08-2/Caffeine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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