{"version":"1.0","type":"stack","id":"195fca9b-4b05-451f-aeb0-a6138124d026","url":"https://stacklist.com/stack/195fca9b-4b05-451f-aeb0-a6138124d026","title":"The Dose Blog","description":"Straight answers on caffeine, crashes, jitters, and focus. The research behind caffeine + L-theanine, the 2PM slump, and ditching the energy drink habit. From LSC100.","privacy":"public","created_at":"2026-10-13T10:33:57.994Z","updated_at":"2026-10-20T13:44:24.218Z","author":{"username":"lsc100-admin","name":"The Dose, by LSC 100®","url":"https://stacklist.com/lsc100-admin","type":"person"},"category":null,"items":[{"id":"d065a033-4294-4e5a-ad13-130daf45435e","position":1,"title":"Why do I crash around 2PM, and how do I avoid it?","url":null,"note":"The afternoon slump is built into your body clock, and lunch is not the main culprit. Here is what the research says actually helps, and where caffeine fits without wrecking your night.","image":{"url":"https://ucarecdn.com/fff647b6-9904-4db9-b7f8-79bca2dc0571/","alt":"Why do I crash around 2PM, and how do I avoid it?","width":1400,"height":1400},"direct_link":"https://stacklist.com/card/d065a033-4294-4e5a-ad13-130daf45435e","created_at":"2026-10-13T13:25:23.336Z","updated_at":null,"aco":{"summary":"The afternoon energy crash around 2PM results from two biological systems: accumulated sleep pressure from adenosine and a circadian rhythm dip, not primarily from lunch. Research-backed solutions include short naps, bright light exposure, brief walks, hydration, and adequate nighttime sleep.","tags":["afternoon-slump","sleep-science","circadian-rhythm","fatigue","productivity","adenosine","napping"],"key_entities":[{"name":"adenosine","type":"concept","confidence":0.95},{"name":"circadian-rhythm","type":"concept","confidence":0.95},{"name":"post-lunch-dip","type":"concept","confidence":0.9},{"name":"sleep-inertia","type":"concept","confidence":0.85},{"name":"Sleep Foundation","type":"organization","confidence":0.9},{"name":"Henry Ford Health","type":"organization","confidence":0.85},{"name":"Henry Ford","type":"person","confidence":0.7}],"classification":"analysis","language":"en","confidence":0.85,"provenance":{"model":"claude-haiku-4-5","tool":"@stacklist/be@0.1.0","confidence":0.85,"timestamp":"2026-10-13T13:25:29.417Z"},"token_counts":{"approximate":3374,"cl100k":3356},"content_hash":"sha256:03e9578520aeecffe6f56bdd08bc1994cfab85ced396cab831cc3c3a714ac935","acp_version":"0.2","body_available":true,"body_tokens":3666,"visibility":"public","agent_accessible":true,"status":"final"}},{"id":"80d7f5f0-83e4-489e-8109-b49d369611fb","position":2,"title":"Does caffeine with L-theanine actually help you focus?","url":null,"note":"Caffeine and L-theanine are one of the most studied pairings in the energy aisle. Here is what the trials found, how strong the evidence is, and who paid for it.","image":{"url":"https://ucarecdn.com/6eddb44c-2447-41eb-b59f-88021799292a/","alt":"Does caffeine with L-theanine actually help you focus?","width":2000,"height":1333},"direct_link":"https://stacklist.com/card/80d7f5f0-83e4-489e-8109-b49d369611fb","created_at":"2026-10-13T13:26:03.619Z","updated_at":null,"aco":{"summary":"Caffeine paired with L-theanine shows modest evidence for improving focus and task-switching accuracy in healthy adults, though the effects are narrower than marketing suggests and largely driven by caffeine. Most studies use doses far exceeding what naturally occurs in tea, and several were funded by tea industry organizations.","tags":["caffeine","l-theanine","focus","cognitive-performance","meta-analysis","research-review"],"key_entities":[{"name":"Owen","type":"person","confidence":0.85},{"name":"Giesbrecht","type":"person","confidence":0.85},{"name":"Einöther","type":"person","confidence":0.85},{"name":"Haskell","type":"person","confidence":0.85},{"name":"Unilever","type":"organization","confidence":0.9},{"name":"Lipton Teas and Infusions","type":"organization","confidence":0.9},{"name":"L-theanine","type":"concept","confidence":0.95},{"name":"caffeine","type":"concept","confidence":0.95},{"name":"attention-switching","type":"concept","confidence":0.88},{"name":"task-switching accuracy","type":"concept","confidence":0.88}],"classification":"analysis","language":"en","confidence":0.85,"provenance":{"model":"claude-haiku-4-5","tool":"@stacklist/be@0.1.0","confidence":0.85,"timestamp":"2026-10-13T13:26:08.321Z"},"token_counts":{"approximate":3006,"cl100k":2929},"content_hash":"sha256:547ec45e71fca2bec5d38e36b81faa826300eff652b21ceff75412777daed6db","acp_version":"0.2","body_available":true,"body_tokens":3006,"visibility":"public","agent_accessible":true,"status":"final"}},{"id":"a6ccc726-8113-45e0-8c88-a6fe2ed6adf3","position":3,"title":"L-theanine, caffeine jitters and the crash: what the research says","url":null,"note":"What the research says about caffeine jitters, the afternoon crash, and the amino acid often sold as a way to smooth both out. Some of it holds up. Some of it doesn't.","image":{"url":"https://ucarecdn.com/b3775fc3-34b7-4fea-b591-20658c55462c/","alt":"L-theanine, caffeine jitters and the crash: what the research says","width":1400,"height":1400},"direct_link":"https://stacklist.com/card/a6ccc726-8113-45e0-8c88-a6fe2ed6adf3","created_at":"2026-10-13T13:27:00.785Z","updated_at":null,"aco":{"summary":"L-theanine, an amino acid found in tea, is marketed as a solution for caffeine jitters and crashes, but research shows it does not reliably prevent jitteriness despite some effects on blood pressure. The caffeine crash stems from withdrawal, sleep debt, and sugar rather than L-theanine deficiency.","tags":["l-theanine","caffeine","jitters","research","amino-acid","energy-drinks","health-science"],"key_entities":[{"name":"L-theanine","type":"concept","confidence":0.99},{"name":"caffeine","type":"concept","confidence":0.99},{"name":"CYP1A2","type":"concept","confidence":0.85},{"name":"FDA","type":"organization","confidence":0.95},{"name":"Mayo Clinic","type":"organization","confidence":0.9},{"name":"Nicole Clark","type":"person","confidence":0.8},{"name":"American Medical Association","type":"organization","confidence":0.85}],"classification":"analysis","language":"en","confidence":0.85,"provenance":{"model":"claude-haiku-4-5","tool":"@stacklist/be@0.1.0","confidence":0.85,"timestamp":"2026-10-13T13:27:04.783Z"},"token_counts":{"approximate":3547,"cl100k":3471},"content_hash":"sha256:61478951eba333be5022f2682acaa6829174d187258250c2437f2d4b09fca6e5","acp_version":"0.2","body_available":true,"body_tokens":3547,"visibility":"public","agent_accessible":true,"status":"final"}},{"id":"f043be39-db36-40d9-9fb7-50e1fcca1dfd","position":4,"title":"How do you swap a two-energy-drink-a-day habit for a better routine?","url":null,"note":"You probably do not decide to buy the 3PM can. Your routine decides for you. Here is what habit research says about changing a daily energy routine, and what to expect when you cut back.","image":{"url":"https://ucarecdn.com/b45eb74a-e656-424b-aaa3-e6a77a660bac/","alt":"How do you swap a two-energy-drink-a-day habit for a better routine?","width":3744,"height":5616},"direct_link":"https://stacklist.com/card/f043be39-db36-40d9-9fb7-50e1fcca1dfd","created_at":"2026-10-13T17:04:03.775Z","updated_at":null,"aco":{"summary":"Swapping an energy drink habit requires building a replacement behavior rather than relying on willpower, as habits are triggered by context cues rather than decisions. Research shows if-then plans and habit stacking can effectively rewire automatic responses, though forming new habits typically takes 18-254 days rather than the commonly cited 21 days.","tags":["habit-formation","behavior-change","energy-drinks","psychology","implementation-intentions","routine-building","self-improvement"],"key_entities":[{"name":"Wendy Wood","type":"person","confidence":0.95},{"name":"David Neal","type":"person","confidence":0.95},{"name":"Benjamin Gardner","type":"person","confidence":0.9},{"name":"Phillippa Lally","type":"person","confidence":0.9},{"name":"Jane Wardle","type":"person","confidence":0.9},{"name":"implementation-intention","type":"concept","confidence":0.92},{"name":"habit-stacking","type":"concept","confidence":0.9},{"name":"habit-formation","type":"concept","confidence":0.95}],"classification":"analysis","language":"en","confidence":0.85,"provenance":{"model":"claude-haiku-4-5","tool":"@stacklist/be@0.1.0","confidence":0.85,"timestamp":"2026-10-13T17:04:12.709Z"},"token_counts":{"approximate":3484,"cl100k":3276},"content_hash":"sha256:a160bfc892ff219f310189082aafabd4090c82efee898fea49d1ace57108814b","acp_version":"0.2","body_available":true,"body_tokens":3484,"visibility":"public","agent_accessible":true,"status":"final"}}],"stats":{"likes_count":0,"items_count":4},"_links":{"self":"/api/public/stack/195fca9b-4b05-451f-aeb0-a6138124d026.json","html":"https://stacklist.com/stack/195fca9b-4b05-451f-aeb0-a6138124d026","rss":"/api/feeds/stack/195fca9b-4b05-451f-aeb0-a6138124d026/rss","json_feed":"/api/feeds/stack/195fca9b-4b05-451f-aeb0-a6138124d026/json"}}