> ## Content Index > Fetch the complete content index at: https://www.b9.com.br/llms.txt > Use this file to discover other available public pages before exploring further. # Tomar café reduz a massa cinzenta do cérebro? - URL: https://www.b9.com.br/naruhodo/naruhodo-274-tomar-cafe-reduz-a-massa-cinzenta-do-cerebro/ - Published: 2021-03-08T11:00:00.000Z - Updated: 2026-06-22T15:16:53.000Z - Description: O podcast pra quem tem fome de aprender - Author: Naruhodo! - Tags: Naruhodo!, #podcast, #274, podcast Deu na imprensa: "Cafeína reduz a massa cinzenta do cérebro mas não prejudica o sono, diz estudo". Afinal, isso é fato ou factóide? E ainda: cafeína vicia? Confira no papo entre o leigo curioso, [**Ken Fujioka**](https://twitter.com/kenfujioka?ref=b9.com.br), e o cientista PhD, [**Altay de Souza**](https://twitter.com/altayals?ref=b9.com.br). OUÇA (51min 29s) \======== **[Download](https://chtbl.com/track/BC6GF7/cdn.simplecast.com/audio/ab2964e7-bcad-4f2f-9698-45cb681f0d69/episodes/627ce53f-58a7-4c24-97a9-6163eb0e67a4/audio/89d5eb52-0dbb-42bc-8209-0ae0e20c26c1/default%5Ftc.mp3?ref=b9.com.br)** | [**iTunes**](https://itunes.apple.com/us/podcast/naruhodo/id1146613549?mt=2&ref=b9.com.br) | [**Android**](http://subscribeonandroid.com/feeds.feedburner.com/naruhodopodcast?ref=b9.com.br) | **[Feed](http://feeds.feedburner.com/naruhodopodcast?ref=b9.com.br)** Edição: Reginaldo Cursino \======== **PARCERIA: ALURA** A Alura tem mais de 1.000 cursos de diversas áreas e é a maior plataforma de cursos online do Brasil -- e você tem acesso a todos com uma única assinatura. Aproveite o desconto de R$100 para ouvintes Naruhodo no link: [https://www.alura.com.br/promocao/naruhodo](https://www.alura.com.br/promocao/naruhodo?ref=b9.com.br) \======== **REFERÊNCIAS** Cafeína reduz a massa cinzenta do cérebro mas não prejudica o sono, diz estudo [https://canaltech.com.br/saude/cafeina-reduz-a-massa-cinzenta-do-cerebro-mas-nao-prejudica-o-sono-diz-estudo-179390/](https://canaltech.com.br/saude/cafeina-reduz-a-massa-cinzenta-do-cerebro-mas-nao-prejudica-o-sono-diz-estudo-179390/?ref=b9.com.br) Daily Caffeine Intake Changes The Structure Of Your Brain, Study Finds [https://www.iflscience.com/brain/daily-caffeine-intake-changes-structure-brain-study-finds/](https://www.iflscience.com/brain/daily-caffeine-intake-changes-structure-brain-study-finds/?ref=b9.com.br) Regular caffeine consumption affects brain structure [https://www.unibas.ch/en/News-Events/News/Uni-Research/Regular-caffeine-consumption-affects-brain-structure.html](https://www.unibas.ch/en/News-Events/News/Uni-Research/Regular-caffeine-consumption-affects-brain-structure.html?ref=b9.com.br) Daily Caffeine Intake Induces Concentration-Dependent Medial Temporal Plasticity in Humans: A Multimodal Double-Blind Randomized Controlled Trial [https://academic.oup.com/cercor/advance-article/doi/10.1093/cercor/bhab005/6135013?login=true](https://academic.oup.com/cercor/advance-article/doi/10.1093/cercor/bhab005/6135013?login=true&ref=b9.com.br) Caffeine in floral nectar enhances a pollinator’s memory of reward [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4521368/](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4521368/?ref=b9.com.br) Habitual coffee consumption and cognitive function: a Mendelian randomization meta-analysis in up to 415,530 participants [https://www.nature.com/articles/s41598-018-25919-2](https://www.nature.com/articles/s41598-018-25919-2?ref=b9.com.br) How does adenosine control neuronal dysfunction and neurodegeneration? [https://onlinelibrary.wiley.com/doi/full/10.1111/jnc.13724](https://onlinelibrary.wiley.com/doi/full/10.1111/jnc.13724?ref=b9.com.br) Adenosine Deaminase Polymorphism Affects Sleep EEG Spectral Power in a Large Epidemiological Sample [https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0044154](https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0044154&ref=b9.com.br) The association between caffeine consumption and objective sleep variables is dependent on ADORA2A c.1083T>C genotypes [https://www.sciencedirect.com.sci-hub.st/science/article/abs/pii/S1389945716302593](https://www.sciencedirect.com.sci-hub.st/science/article/abs/pii/S1389945716302593?ref=b9.com.br) Axonal elongation and dendritic branching is enhanced by adenosine A2A receptors activation in cerebral cortical neurons [https://link.springer.com.sci-hub.st/article/10.1007/s00429-015-1072-1](https://link.springer.com.sci-hub.st/article/10.1007/s00429-015-1072-1?ref=b9.com.br) Metabolic regulation of ATP breakdown and of adenosine production in rat brain extracts [https://pubmed.ncbi.nlm.nih.gov/15313467/](https://pubmed.ncbi.nlm.nih.gov/15313467/?ref=b9.com.br) Adenosine and Sleep [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2769007/](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2769007/?ref=b9.com.br) The alerting effects of caffeine, bright light and face washing after a short daytime nap [https://www.sciencedirect.com/science/article/abs/pii/S1388245703002554](https://www.sciencedirect.com/science/article/abs/pii/S1388245703002554?ref=b9.com.br) Suppression of sleepiness in drivers: combination of caffeine with a short nap [https://pubmed.ncbi.nlm.nih.gov/9401427/](https://pubmed.ncbi.nlm.nih.gov/9401427/?ref=b9.com.br) Caffeine Use or Napping to Enhance Repeated Sprint Performance After Partial Sleep Deprivation: Why Not Both? [https://journals.humankinetics.com.sci-hub.st/view/journals/ijspp/aop/article-10.1123-ijspp.2019-0792/article-10.1123-ijspp.2019-0792.xml](https://journals.humankinetics.com.sci-hub.st/view/journals/ijspp/aop/article-10.1123-ijspp.2019-0792/article-10.1123-ijspp.2019-0792.xml?ref=b9.com.br) Naruhodo #156 - O que é paralisia do sono? Naruhodo #256 - Porque roncamos? Naruhodo #188 - Contar carneirinhos faz a gente dormir mais rápido? Naruhodo #129 - Sono polifasico funciona segundo a ciencia? Naruhodo #49 - O que é vício? Naruhodo #37 - Animal, Ovo faz bem ou mal para saúde? Podcasts das #Minas: DONAS DA PORRA TODA #MulheresPodcasters [https://open.spotify.com/show/0jkA6EXxRiNJrwvcbUNPWc](https://open.spotify.com/show/0jkA6EXxRiNJrwvcbUNPWc?ref=b9.com.br) \======== **APOIE O NARUHODO!** Você sabia que pode ajudar a manter o Naruhodo no ar? Ao contribuir, você pode ter acesso ao grupo fechado no Telegram, receber conteúdos exclusivos e ter vantagens especiais. 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