Topic
Safety
Safety is a recurring research topic on Health Canon. This hub collects related explainers and protocols, newest first, each with evidence grades and practical decision frameworks.
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Light & Recovery
Red Light Therapy Safety: The Checklist (2026)
Eye protection, dose honesty, photosensitizing meds, skin checks—before protocol chasing.
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Light & Recovery
Sauna Contraindications: The Safety Checklist (2026)
Screen pregnancy, unstable CVD, alcohol, meds, and heat illness risk before chasing Finnish frequency targets.
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Women's Health
Red Light Therapy for Women: Skin, Hair, Pain—and Pregnancy Safety Boundaries
Strongest female-relevant evidence: cosmetic skin photoaging and female pattern hair LLLT arms; MSK pain shared. Hormone/fertility claims weak. Pregnancy: follow device IFU and clinician guidance—do not DIY high-intensity protocols.
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Light & Recovery
Red Light Therapy Safety and Contraindications: Eyes, Photosensitizers, Cancer, Pregnancy
PBM is generally well tolerated at therapeutic parameters—but eye exposure, photosensitizing drugs, active malignancy treatment sites, and pregnancy require IFU-level caution. Heat and overuse are user-error risks.
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Light & Recovery
Sauna Risks: Alcohol, Acute Cardiac Events, and Who Needs Medical Caution
Habitual Finnish sauna looks favorable in cohorts—but acute risk rises with alcohol, hypotension, recent MI instability, and unsupervised extremes. Safety is not the enemy of benefits.
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Women's Health
Pregnancy Exercise: ACOG Guidance, Benefits, and Absolute Contraindications
ACOG CO 804: activity has minimal risks and benefits most women. Target ≥150 min/week moderate aerobic when uncomplicated; screen absolute contraindications.
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Expert Dossiers
Animal-Based and Carnivore Contraindications: Who Should Not Follow Influencer Protocols
Highest concern: FH/ASCVD, pregnancy/infants, immunocompromise, CKD, gout, hemochromatosis, active eating disorders. List stop rules—not just macros.
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Light & Recovery
Sauna Safety: The Core Rules (2026)
Contraindication screens, hydration, time/temperature progression, alcohol bans, medication cautions, and exit criteria—benefits only after safety.
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Expert Dossiers
Jack Kruse Safety Risks: What Uncritical Stack Following Can Cost
Green hygiene modules differ from red-line extremes: unsupervised ice, UV overexposure, severe restriction, care delay, and EMF anxiety costs.
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Women's Health
Sauna in Pregnancy and Infrared vs Finnish Heat: Risk Distinctions
Core temperature—not brand marketing—drives pregnancy caution. Finnish and infrared are not interchangeable evidence bases.
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Women's Health
Sauna and Pregnancy: Core Heat, Neural Tube Defect Risk, and Guidance
Maternal hyperthermia in early pregnancy associates with NTD risk; obstetric guidance commonly discourages sauna and hot tub—core temp matters, not IR marketing.
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Light & Recovery
Red Light for Skin Photoaging: Evidence, Dosing, Safety Limits
Wrinkle and collagen trials are among PBM’s stronger cosmetic datasets—with clear non-miracle boundaries.
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Expert Dossiers
Jack Kruse Cold Thermogenesis Claims: BAT Kernel vs Cure List
Cold activates brown fat. That does not validate multi-disease reversal protocols.
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