{"version":"1.0","type":"card","id":"a750d86b-6740-41ef-a3ad-f6ec137059fd","url":"https://stacklist.com/card/a750d86b-6740-41ef-a3ad-f6ec137059fd","title":"How Caffeine Interacts with Adenosine Receptors","source_url":"https://biologyinsights.com/how-caffeine-interacts-with-adenosine-receptors/","note":"Explore the fundamental biological interactions that explain caffeine’s impact on your body, mind, and why its effects vary among individuals.","image":{"url":"https://ucarecdn.com/ee744fa1-bb30-4fea-8bb8-5ea7a676d512/","alt":"How Caffeine Interacts with Adenosine Receptors","width":936,"height":626},"stack":{"id":"385684d9-7da2-44a5-9f77-c971f5611932","title":"The Chemistry of Calm Energy: LSC100 Caffeine & L-Theanine Science","url":"https://stacklist.com/stack/385684d9-7da2-44a5-9f77-c971f5611932"},"created_at":"2026-08-18T00:41:23.006Z","updated_at":null,"aco":{"summary":"Caffeine's Interaction with Adenosine Receptors explains how caffeine acts as a competitive antagonist at adenosine receptors in the brain, blocking adenosine's inhibitory effects and promoting alertness and reduced fatigue. Regular consumption leads to physiological adaptations including receptor upregulation and tolerance, requiring higher doses to achieve the same stimulating effects.","tags":["caffeine","adenosine-receptors","neurotransmitters","brain-chemistry","stimulant","tolerance"],"key_entities":[{"name":"Adenosine","type":"concept","confidence":0.99},{"name":"Caffeine","type":"concept","confidence":0.99},{"name":"Adenosine Receptors","type":"concept","confidence":0.98},{"name":"A1 receptors","type":"concept","confidence":0.95},{"name":"A2A receptors","type":"concept","confidence":0.95},{"name":"Dopamine","type":"concept","confidence":0.92},{"name":"Norepinephrine","type":"concept","confidence":0.92},{"name":"Central Nervous System","type":"location","confidence":0.9},{"name":"Competitive Antagonist","type":"concept","confidence":0.88}],"classification":"reference","language":"en","confidence":0.85,"provenance":{"model":"claude-haiku-4-5","tool":"@stacklist/be@0.1.0","confidence":0.85,"timestamp":"2026-08-18T00:41:28.900Z"},"token_counts":{"approximate":1326,"cl100k":990},"content_hash":"sha256:da45323f824efd66b71e56ba0bd2408ba77af0028a2a6e0a2f488b51e5ee23da","acp_version":"0.2","body_available":true,"body_tokens":1326,"visibility":"public","agent_accessible":true,"status":"final"},"_links":{"self":"/api/public/card/a750d86b-6740-41ef-a3ad-f6ec137059fd.json","html":"https://stacklist.com/card/a750d86b-6740-41ef-a3ad-f6ec137059fd","md":"/api/public/card/a750d86b-6740-41ef-a3ad-f6ec137059fd.md","stack_json":"/api/public/stack/385684d9-7da2-44a5-9f77-c971f5611932.json"}}