Hiccup episodes that persist for more than 48 hours are called persistent hiccups. And when they happen for more than a month, they are called intractable.
Hiccups happen when the muscle that separates your chest from your abdomen - called the diaphragm - contracts, says Dr. Jen Caudle. Your vocal cords suddenly close after this contraction, and the “hic” sound happens due to air rushing into the lungs before the vocal cords close.
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This video was originally published on Yahoo Life on Jan. 4, 2023.
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