What are hiccups, and what causes them?
Hiccups (or singultus) are involuntary, spasmodic contractions of the diaphragm—followed by a sudden closure of the glottis that produces the characteristic “hic” sound. Generally benign and self-limiting (< 48 hours), it can, in rare cases, become chronic and indicate an underlying medical condition. Our digestive comfort line offers soothing ingredients for the diaphragm and the associated digestive system.
- Mechanism: The phrenic nerve (which innervates the diaphragm) and the vagus nerve (which innervates the stomach and esophagus) are the two main players—irritation of these nerves triggers the hiccup reflex
- Common digestive causes: gastric distension (eating too quickly, overeating, carbonated beverages, alcohol)—aerophagia—see our simethicone page to reduce gastric gas
- Irritative causes: spicy or hot foods (directly irritate the esophagus) — sudden changes in temperature — certain medications (corticosteroids, benzodiazepines)
- Emotional causes: stress, strong emotions, prolonged laughter — activation of the autonomic nervous system → diaphragmatic spasm
- Infant hiccups: very common and benign — immature diaphragm + swallowing air while feeding — resolves spontaneously — upright position after feeding + easier burping
Natural remedies and vagal reflexes to stop hiccups
Most folk remedies work by stimulating the vagus nerve or increasing blood CO2 levels (which relaxes the diaphragm). Supplement with our Physio Comfort actives.
- Hold your breath for 10–30 seconds: increases blood CO₂ → relaxes the diaphragm — the most effective and best-documented method — repeat 3 times
- Drink cold water slowly: stimulates the vagus nerve via the esophagus + locally cools the diaphragm — drink in small, continuous sips without taking a breath
- Sugar on the tongue: stimulates the vagus nerve via the taste buds — one teaspoon of brown sugar or honey, dissolved slowly — especially effective in children
- Gentle pressure on closed eyelids: stimulates the oculo-cardiac reflex (vagus nerve)—apply light pressure for 10–15 seconds—never press hard (risk of vasovagal reflex)
- Breathing into a paper bag: rapidly increases the concentration of inhaled CO₂ → relaxes the diaphragm — use a paper bag (not plastic) — 5–10 breaths
Natural and active supplements for recurrent hiccups
- Ginger (herbal tea or capsules): gastric prokinetic + antispasmodic — reduces gastric distension that causes hiccups — 500 mg before meals or steep for 10 minutes — available in our flat-belly supplements
- Simethicone: reduces gas bubbles in the stomach — decreases gastric distension that irritates the diaphragm — rapid relief in 15–30 minutes — effective if the hiccups are related to gas or bloating
- German chamomile: antispasmodic for the diaphragm and stomach lining—steep for 3 minutes after meals—soothes neuromuscular spasms related to stress or anxiety
- Peppermint (capsules or mild herbal tea): relaxes the smooth muscles of the esophagus and diaphragm — helpful if hiccups are caused by acid reflux or esophageal spasms — 1 cup after a meal
- Activated charcoal: reduces gastric fermentation (gas = a common cause of hiccups) — 1–2 capsules between meals — take separately from any medication
Chronic Hiccups: When to Seek Medical Attention and Medical Treatments
- Acute hiccups: < 48 hours — mild, self-limiting — home remedies are sufficient — no medical evaluation necessary
- Persistent hiccups: 48 hours–1 month — see a doctor — causes to investigate: GERD, gastritis, hiatal hernia, metabolic causes (hypokalemia, uremia)
- Chronic hiccups: > 1 month — thorough evaluation required (endoscopy, thoracoabdominal CT scan, brain MRI) — serious causes: brain tumor, meningitis, stroke, pericarditis, pneumonia, thoracic neoplasm
- Medical treatments for chronic hiccups: metoclopramide (prokinetic) — baclofen (muscle relaxant) — chlorpromazine (sedative) — anticonvulsants (gabapentin) — as a last resort: phrenic nerve block
- Infants: Frequent hiccups after feeding → safely place the infant on their stomach or hold them upright on your shoulder + encourage burping — if very frequent and accompanied by significant regurgitation → consult a pediatrician (infant GERD)
