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- Title
Time for tea: mood, blood pressure and cognitive performance effects of caffeine and theanine administered alone and together.
- Authors
Rogers, Peter J; Smith, Jessica E; Heatherley, Susan V; Pleydell-Pearce, C W
- Abstract
Although both contain behaviourally significant concentrations of caffeine, tea is commonly perceived to be a less stimulating drink than coffee. At least part of the explanation for this may be that theanine, which is present in tea but not coffee, has relaxing effects. There is also some evidence that theanine affects cognitive performance, and it has been found to reduce blood pressure in hypertensive rats.
- Publication
Psychopharmacology, 2008, Vol 195, Issue 4, p569
- ISSN
0033-3158
- Publication type
Journal Article
- DOI
10.1007/s00213-007-0938-1