Andrew Huberman, Ph.D.HOW TO RELIABLY STOP HICCUPS: Hiccups = phrenic nerve-to-diaphragm spasm. To de-spasm that circuit, inhale maximally (via your nose) 3 …
what it claims
To stop hiccups, inhale as much as possible through your nose three times in a row without exhaling between inhalations, then hold your breath for 15 to 30 seconds before exhaling slowly through your mouth.
This advice is based on the physiology of the diaphragm and the phrenic nerve, which are involved in the involuntary spasm that is a hiccup.
