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4 matching protocols · grade D
Whole-body cryotherapy chambers: what the evidence does and doesn't show
Cold & heat exposureEvidence DWBC chambers cool the skin to -110 to -140 °C for 2–3 minutes. Thinner evidence than ice baths despite premium pricing — what the trials actually report, the safety profile, and a fair comparison.
Polyvagal theory: a critical look at the framework's evidence base
HRVEvidence DPolyvagal theory is widely cited in trauma therapy, breathwork, and somatic-practice content. The specific neuroanatomical and evolutionary claims are contested by mainstream neuroscience. What the framework offers, and what doesn't hold up.
Blue Zones: what the observational data shows and the recent critiques
LongevityEvidence DThe Blue Zones — Sardinia, Okinawa, Loma Linda, Nicoya, Ikaria — have become a fixture of popular longevity discourse. Recent statistical work has challenged some of the underlying data. What's robust and what isn't.
Psilocybin microdosing: research overview, UK legality, and why we don't dose
NootropicsEvidence DPsilocybin microdosing is widely discussed online. Psilocybin is a Class A controlled drug in the UK with severe legal penalties. What the research describes — without dosing, sourcing, or how-to information.