Component
Device-estimated light sleep duration
Device-estimated light sleep duration. Species, exposure and limitations are retained in each linked claim.
1 recorded relationships. Experimental role, claim status and evidence remain attached to each record.
How nutrients influence it
Every nutrient with a recorded effect on this component, credited to the nutrient that acted rather than the chapter that recorded it. Open a nutrient to see the findings and the conditions they were measured under.
Other things that act on it
Enzymes, hormones, genes, and other components with a recorded effect. These are not nutrients, so they do not count toward the arrows above. Each finding names the chapter that recorded it.
How nutrients reach it in more than one step
Chains of two or more recorded steps that end here, grouped by the nutrient they start from. Each step is a separate finding, so a chain is a route a mechanism could take, not proof that it does.
Tracing routes…
What it does
Every recorded relationship this component is part of, grouped by its role. Plain wording comes first; the technical statement follows.
What acts on it
The theanine group had reduced light sleep compared with placebo in the trial.
Experimental context and source evidence
- evidence_span
- {"source_cache": "artifacts/theanine-research/38758503.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "aebe7d7493418c65df97e44dd0e07e73f806204c025277f339e4fa99048d13cc", "start_char": 0, "end_char": 2433, "text_sha256": "aebe7d7493418c65df97e44dd0e07e73f806204c025277f339e4fa99048d13cc"}
- experimental_model
- Randomized double-blind placebo-controlled trial
- exposure
- 400 mg/day for 28 days
- limitations
- Small sample and several endpoints. Similar within-group stress reductions are not evidence of placebo-controlled superiority; less sleep is not inherently a benefit.
- nutrient_topic
- L-Theanine research collection; topical membership is not evidence of a direct dietary effect. · L-Theanine
- organism
- 30 healthy adults; 15 per group
- plain_language
- A decrease in a sleep measure is retained as an observation without automatically calling it better sleep.
- primary_references
- [theanine-p38758503] Safety and Efficacy of AlphaWave® L-Theanine Supplementation for 28 Days in Healthy Adults with Moderate Stress: A Randomized, Double-Blind, Placebo-Controlled Trial. (2024). https://pubmed.ncbi.nlm.nih.gov/38758503/ DOI: 10.1007/s40120-024-00624-7
- tissue_or_cell_type
- Stress, salivary cortisol and sleep
L-Theanine: metabolism, neural signaling, nutrient connections and human outcomes (2026-09-17) · lines 1225–1236
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Randomized double-blind placebo-controlled trial · source_derived_draft · unverified_draft
### theanine-light-sleep The theanine group had reduced light sleep compared with placebo in the trial. Condition category: normal nutrient_topic: L-Theanine research collection; topical membership is not evidence of a direct dietary effect. plain_language: A decrease in a sleep measure is retained as an observation without automatically calling it better sleep. organism: 30 healthy adults; 15 per group tissue_or_cell_type: Stress, salivary cortisol and sleep experimental_model: Randomized double-blind placebo-controlled trial limitations: Small sample and several endpoints. Similar within-group stress reductions are not evidence of placebo-controlled superiority; less sleep is not inherently a benefit. exposure: 400 mg/day for 28 days evidence_span: {"source_cache": "artifacts/theanine-research/38758503.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "aebe7d7493418c65df97e44dd0e07e73f806204c025277f339e4fa99048d13cc", "start_char": 0, "end_char": 2433, "text_sha256": "aebe7d7493418c65df97e44dd0e07e73f806204c025277f339e4fa99048d13cc"} [theanine-p38758503] Safety and Efficacy of AlphaWave® L-Theanine Supplementation for 28 Days in Healthy Adults with Moderate Stress: A Randomized, Double-Blind, Placebo-Controlled Trial. (2024). https://pubmed.ncbi.nlm.nih.gov/38758503/ DOI: 10.1007/s40120-024-00624-7
Complete structured claim and evidence
The events it takes part in
A mechanism often involves more than two components. These are the full events, with every participant and its role.
Situations it appears in
Low-supply and faulty-machinery situations recorded in the chapters where this component plays a part.
In the sources
Preserved passages that mention this component, quoted exactly. Open one to read it in context.
Open hypotheses
Proposed ideas that involve this component. They are labeled as hypotheses and do not change any recorded statement.
This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.