The relationship between a fermented apple product and involuntary diaphragm contractions is a subject of interest in both traditional and contemporary home remedies. Some individuals propose using a sour liquid derived from apples to alleviate these spasms of the diaphragm that cause a characteristic sound. The intention is to disrupt or override the neurological signals believed to trigger the repetitive cycle.
Anecdotal evidence suggests that acidity may stimulate nerves in the throat, potentially interrupting the hiccup reflex arc. The proposed benefits stem from the belief that a strong taste sensation can reset the nerve pathways involved. Historically, various strong-tasting or irritating substances have been employed in attempts to cease these physiological events, predicated on a similar principle of sensory override.