Introduction Hiccups, medically known as singultus, are involuntary contractions of the diaphragm followed by a sudden closure of the vocal cords. While usually harmless, hiccups can be uncomfortable or disruptive. Many effective home remedies target the vagus nerve, a key player in controlling the diaphragm and the hiccup reflex. Techniques such as gargling, swallowing sugar, or pulling the knees to the chest aim to “reset” this nerve and stop hiccups. 1. Understanding the Vagus Nerve The vagus nerve (cranial nerve X) is one of the longest nerves in the body, running from the brainstem through the neck and thorax to…