Evidence reviews of health devices, wearables, filters, and related technology claims.
Home Devices Red Light Therapy Evidence review Red light therapy is sold for everything from wrinkles and hair loss to joint pain, wound healing and brain health. The evidence is not one simple yes or no. Results depend on the condition, wavelength, dose and device. A benefit from a clinical laser protocol does not prove…
Evidence review WEH verdict: Uncertain Overall evidence: Low certainty Display-equipped AI glasses can cause temporary eye strain, glare and focusing changes. Permanent eye damage has not been demonstrated, but long-term studies are too limited to settle the question. The claim being checked “AI smart glasses damage your eyes because a tiny screen sits extremely close…
Evidence review WEH verdict: Unlikely Overall evidence: Low certainty Blue-light glasses are unlikely to reduce digital eye strain or protect your eyes from everyday screen use. Their effect on sleep remains uncertain. The claim being checked “Blue-light glasses reduce eye strain, improve sleep and protect the macula from screen damage.” Evidence at a glance Digital…
• Sleep totals: Fairly good, but sleep stages and wake periods are less reliable• Overnight heart rate / HRV: Looks strong in validation studies• Steps / calories: Useful for trends, not exact numbers The Marketing Claims vs the Evidence Claim 1: Smart rings accurately track sleepEvidence: Reasonably good for basic sleep totals, but weaker for…