Achalasia is a rare disorder that affects the passage of food and liquid from the swallowing tube (esophagus) to the stomach. Here are the key points: Mechanism: In achalasia, damaged nerves in the esophagus lead to paralysis and dilation of the esophagus over time. Consequently, the esophagus loses its ability to propel food into the stomach. Food can accumulate in the esophagus, sometimes fermenting and causing a […]