13 Matching Annotations
- Nov 2023
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www.youtube.com www.youtube.com
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36:00 caffeine is an adenosine antagonist which reduces fatigue and lethargy
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- Jul 2023
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www.youtube.com www.youtube.com
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- Caffeine as backbone of civilization
- caffeine archetype ( I am the mindful master)
- high correlation between flow & caffeine
- associate caffeine with flow (I also do this with flow music)
- shortcut struggle phase with caffeine
- caffeine timing (1 to 1.5 hours until waking & 10 hours before sleep no caffeine)
- proper dosage (test what works) 4.1 higher dosage when lack of sleep
- what caffeine synergizes most (for me, probably coffee, in particular espresso) 5.1 double water intake when drinking caffeine (I always try to do this) 6 keep caffeine sensitivity high (1 day per week off, 1 week per quarter off)
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- Dec 2022
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heapdump.cn heapdump.cn
- Aug 2021
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journals.sagepub.com journals.sagepub.com
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withdrawal conditions
Oddly, the strong adenosinergic pressure from ~20 hours wake combined from caffeine withdrawal didn't lead to increased SWS. Indeed, there was a nonsignificant trend towards a decrease in SWS. One possibility is that caffeine induced SWS surplus accumulation over the previous week, reducing SWS drive. However, this could alternatively be explained by the 60 minute nap.
Withdrawal restored REM sleep under these conditions. The withdrawal condition looks quite similar to placebo (both REM and SWS), which is rather surprising.
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- Mar 2020
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news.uark.edu news.uark.edu
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In addition to the results on creativity, caffeine did not significantly affect working memory, but test subjects who took it did report feeling less sad.
Coffee also:
.+ happier
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While the cognitive benefits of caffeine — increased alertness, improved vigilance, enhanced focus and improved motor performance — are well established, she said, the stimulant’s affect on creativity is less known.
Coffee: .+ alertness
.+ vigilance
.+ focus
.+ motor performance
? creativity
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Caffeine increases the ability to focus and problem solve, but a new study by a University of Arkansas researcher indicates it doesn’t stimulate creativity.
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- May 2019
- Apr 2018
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www.ncbi.nlm.nih.gov www.ncbi.nlm.nih.gov
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caffeine caused a significant decrease of PTH secretion and PTH gene expression. This decrease occurred in parallel with a decrease of the intracellular cAMP level, protein kinase A activity, and ADORA1 gene expression
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www.ncbi.nlm.nih.gov www.ncbi.nlm.nih.gov
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chronic administration of caffeine could lead to negative calcium balance when there is an impaired ability to increase the efficiency of calcium absorption. Such a situation exists in elderly human subjects
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www.ncbi.nlm.nih.gov www.ncbi.nlm.nih.gov
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Caffeine decreases vitamin D receptor protein expression and 1,25(OH)2D3 stimulated alkaline phosphatase activity in human osteoblast cells
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www.ncbi.nlm.nih.gov www.ncbi.nlm.nih.gov
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Estimates with interaction of caffeine and duration of treatment
vit D neg assoc w/ OP
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www.ncbi.nlm.nih.gov www.ncbi.nlm.nih.gov
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Vitamin D concentration among the groups was 16.2±5.3 mL and 80.3% of them were considered to be vitamin D-deficient. All the groups appeared to have deficiencies compared to males who did not consume caffeine
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