Hiccup

Hiccups occur due to spasms of the phrenic nerve, which controls the diaphragm. These spasms can cause discomfort in the gut, abdomen, or chest, and they often interrupt conversations or relaxation. To alleviate hiccups, Andrew Huberman recommends a breathing technique that involves three sequential deep inhales through the nose, followed by a breath-hold for 15 to 20 seconds before exhaling slowly. This method hyperexcites and then over-relaxes the phrenic nerve, effectively stopping the spasms and thereby eliminating hiccups. It is noted to be an efficient and science-supported way to stop hiccups 1.