What is Heartburn and Acid Reflux?

Heartburn and acid reflux happen when stomach acid flows back up into the oesophagus, causing a burning sensation in the chest or throat, often alongside a sour taste in the mouth. It's common and can be triggered by certain foods, eating large meals, lying down soon after eating, being overweight, or pregnancy.

Occasional heartburn is usually easily managed with simple lifestyle changes and over-the-counter treatments, while frequent or severe symptoms may need further investigation and stronger treatment to protect the oesophagus from ongoing acid exposure.