I think it uses the "Gate Theory". You brain can only receive so many signals at once, and the electrical signals block out the pain signals.
Could be wrong, but it sounds good
Single mom to my little man 11yrs old
39yrs old. JRA since a kid. Chronic Uveitis, pleurisy, pericarditis, intersticial lung disease, sjorgrens syndrome, Cushing's Syndrome, gastroparisis
Bilateral TMJ replacements due to bone fusion, port-a-cath, g/j feeding tube, antiphospholipid antibody syndrome(my blood fights itself) epilepsy, MCTD, dysphagia(unable to swallow correctly)