Depression
Every intervention in the library graded against Depression — 5 links, strongest claim first. Each is the entry’s own reading of the evidence, not advice for anyone in particular.
Improves2 links
- Sleep architectureEvidence grade B
Bidirectional link; fixing sleep measurably lifts mood outcomes
- Zone 2 trainingEvidence grade B
Effect sizes rival first-line treatment in mild-moderate cases
May improve3 links
- Omega-3 (EPA/DHA)Evidence grade B
EPA-heavy (≥60%) formulas as an adjunct to treatment
- Cold exposureEvidence grade C
The acute mood lift is reliable; a durable antidepressant effect is unproven
- CreatineEvidence grade C
Adjunct RCTs show faster SSRI response; small samples so far
Compare Sleep architecture and Zone 2 training side by side →
Directions and grades are read from each intervention’s own entry in this library. They describe the evidence for a link, not what anyone should take, and they are no substitute for a clinician who knows the person.