Pain, Fibromyalgia & Migraine
tDCS and CES β the modalities behind microcurrent pain work β have the strongest adjacent literature. Effect sizes are modest but consistent.
A 2024 meta-analysis in Neurophysiologie Clinique (20 studies) found active tDCS produced positive effects on pain, depression and FIQ scores vs. sham. Effects are real but modest β and none were conducted on Healy itself.