Sleep is the most-studied recoverable health system. Below: what the published research describes about the highest-effect-size interventions, with citation density and zero advice.
Sleep apnea is diagnosed via polysomnography (sleep lab study) or home sleep apnea testing. This page describes what each measures, why home tests miss most mild cases, and AHI diagnostic thresholds.
11 min read · 2026-06-01 Sleep physiologySleep is not a single state but a cycle of physiologically distinct stages — N1, N2, N3 (deep sleep), and REM. This page describes what researchers measure to identify each stage and what each does.
10 min read · 2026-06-01 Sleep researchDecades of controlled trials have measured what happens when sleep is restricted. This page describes cognitive, metabolic, immune, cardiovascular, and mental health effects as the research literature reports them.
11 min read · 2026-06-01 Sleep durationSleep research recommends 7-9 hours for most adults. This page describes the range, individual variation, what changes across the lifespan, and why duration alone isn't the full picture.
11 min read · 2026-06-01 Sleep supplementsMelatonin is among the most-used sleep supplements. The studied effective dose range is 0.3-3 mg — substantially lower than most consumer products. This page describes what the research actually measures.
12 min read · 2026-06-01What the research describes about 12 sleep interventions, ranked by measured effect size. No advice, no marketing claims, just what trials measured with citations.
Proco Scanner reads any supplement label and surfaces what the published research describes for each ingredient — dose, evidence, and known interactions. Coming to iOS. Join the waitlist for early access.
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