---
title: "Caffeine and L-theanine Effects on Blood Flow and Cognition"
url: https://stacklist.com/card/51b5851d-ed87-4771-affc-cefd223b764f
source_url: "https://pmc.ncbi.nlm.nih.gov/articles/PMC4480845/"
stack: https://stacklist.com/stack/385684d9-7da2-44a5-9f77-c971f5611932
summary: "The role of gut microbiota in human health and disease examines how the microbial communities in the digestive system influence overall health outcomes and contribute to various disease states. This content appears to be from a scientific database or reference resource focused on microbiome research."
tags: "gut-microbiota, human-health, disease, microbiome, ncbi, medical-research"
key_entities: "gut microbiota (concept), human health (concept), disease (concept), NCBI (organization), PMC (organization)"
classification: "reference"
content_hash: "sha256:ffcc01c42fd7d904e5342c01fad7f9b5014d849c2d05a81b22965ba596c193a3"
acp_version: "0.2"
token_counts_approximate: 33
visibility: public
agent_accessible: true
status: "final"
---

# Caffeine and L-theanine Effects on Blood Flow and Cognition

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