Why do cigars give you Heartburn?

Cigars can cause heartburn primarily due to the nicotine and other chemicals they contain, which can relax the lower esophageal sphincter, allowing stomach acid to flow back into the esophagus. Additionally, the act of smoking can lead to increased acid production and irritation of the digestive tract. The smoke itself can also contribute to acid reflux symptoms. Overall, smoking cigars can exacerbate existing heartburn or trigger it in individuals prone to acid reflux.