Final answer:
Achalasia can be associated with GERD and asthma.
Step-by-step explanation:
Achalasia is a condition characterized by the inability of the lower esophageal sphincter (LES) to relax properly, leading to difficulty in swallowing food and liquid. While there are no specific illnesses directly associated with achalasia, it can coexist with other conditions, including GERD (Gastroesophageal reflux disease) and asthma. GERD is a chronic condition where stomach acid flows back into the esophagus, causing heartburn and reflux symptoms. Asthma, on the other hand, is a chronic respiratory disease characterized by airway inflammation and narrowing that can trigger episodes of wheezing, chest tightness, and difficulty breathing.