Sensing Physics

Measurement and imaging — where the sensor is real but the broad diagnostic interpretation overreaches: pulse-wave vascular age, full-body ultrasound, corona discharge, consumer “terahertz.”

Terahertz 'Therapy' (consumer devices)Consumer 'terahertz' devices are rebranded infrared heaters that emit no terahertz. Legitimate laboratory THz imaging / spectroscopy is real physics and is kept separate.Not supported by evidence-based science grade E GDV / Kirlian (Korotkov)Corona discharge is real, measurable electrodynamics; the biofield-diagnosis interpretation is unsupported (a Polish study failed to establish the relationship). Instrument real; interpretation not confirmed.Not supported by evidence-based science grade F AngioCode — Vascular-Age PhotoplethysmographyOne atlas entry for the AngioCode 'vascular-age' line. Photoplethysmography with pulse-wave contour analysis is a real, validated method; the consumer 'vascular age / cardiovascular diagnosis' interpretation overreaches the sensor. The registered indication is narrow; the marketing is broad.Insufficient evidence / under study grade C/D Midjourney Medical — Full-Body Ultrasound ScannerAnnouncement-stage whole-body ultrasound scanner. The ultrasound imaging substrate is real; the broad whole-body-screening / mortality-reduction claim is unvalidated and not FDA-cleared to diagnose. Mirrors the AngioCode pattern — real substrate, broad interpretation unvalidated.Insufficient evidence / under study grade D