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Effect of Green Tea Phytochemicals on Mood and Cognition

Overview of attention for article published in Current Pharmaceutical Design, July 2017
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • One of the highest-scoring outputs from this source (#3 of 3,423)
  • High Attention Score compared to outputs of the same age (99th percentile)
  • High Attention Score compared to outputs of the same age and source (99th percentile)

Mentioned by

news
46 news outlets
blogs
4 blogs
twitter
13 tweeters
facebook
2 Facebook pages
wikipedia
1 Wikipedia page
googleplus
1 Google+ user
reddit
1 Redditor
video
12 video uploaders

Citations

dimensions_citation
29 Dimensions

Readers on

mendeley
127 Mendeley
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Title
Effect of Green Tea Phytochemicals on Mood and Cognition
Published in
Current Pharmaceutical Design, July 2017
DOI 10.2174/1381612823666170105151800
Pubmed ID
Authors

Christina Dietz, Matthijs Dekker

Abstract

Green tea is traditionally known to induce mental clarity, cognitive function, physical activation and relaxation. Recently, a special green tea, matcha tea, is rapidly gaining popularity throughout the world and is frequently referred to as a mood- and brain food. Matcha tea consumption leads to much higher intake of green tea phytochemicals compared to regular green tea. Previous research on tea constituents caffeine, L-theanine, and epigallocatechin gallate (EGCG) repeatedly demonstrated benefits on mood and cognitive performance. These effects were observed when these phytochemicals were consumed separately and in combination. A review was conducted on 49 human intervention studies to summarize the research on acute psychoactive effects of caffeine, L-theanine, and EGCG on different dimensions of mood and cognitive performance. Caffeine was found to mainly improve performance on demanding long-duration cognitive tasks and self-reported alertness, arousal, and vigor. Significant effects already occurred at low doses of 40 mg. L-theanine alone improved self-reported relaxation, tension, and calmness starting at 200 mg. L-theanine and caffeine combined were found to particularly improve performance in attention-switching tasks and alertness, but to a lesser extent than caffeine alone. No conclusive evidence relating to effects induced by EGCG could be given since the amount of intervention studies was limited. These studies provided reliable evidence showing that L-theanine and caffeine have clear beneficial effects on sustained attention, memory, and suppression of distraction. Moreover, L-theanine was found to lead to relaxation by reducing caffeine induced arousal.

Twitter Demographics

The data shown below were collected from the profiles of 13 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 127 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 127 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 27 21%
Researcher 18 14%
Student > Master 13 10%
Student > Postgraduate 7 6%
Other 6 5%
Other 19 15%
Unknown 37 29%
Readers by discipline Count As %
Nursing and Health Professions 16 13%
Biochemistry, Genetics and Molecular Biology 14 11%
Medicine and Dentistry 13 10%
Agricultural and Biological Sciences 12 9%
Sports and Recreations 6 5%
Other 22 17%
Unknown 44 35%

Attention Score in Context

This research output has an Altmetric Attention Score of 377. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 22 July 2022.
All research outputs
#61,730
of 21,800,360 outputs
Outputs from Current Pharmaceutical Design
#3
of 3,423 outputs
Outputs of similar age
#2,074
of 421,756 outputs
Outputs of similar age from Current Pharmaceutical Design
#1
of 89 outputs
Altmetric has tracked 21,800,360 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 3,423 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.7. This one has done particularly well, scoring higher than 99% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 421,756 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 89 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 99% of its contemporaries.