Achalasia is a serious stomach disorder that disturbs the functionality of the tube responsible for carrying food from mouth to stomach (esophagus) by affecting the capability of esophagus to transfer food to the stomach. Achalasia is also known as esophageal achalasia. It is commonly identified as an esophageal motility disorder which comprehends the flat muscle layer of the esophagus and the lower esophageal sphincter. In conditions of Achalasia it gets very difficult for the muscles to carry food down the esophagus. This disease is most common in middle age or older adults but this is not a specific age grouping for occurrence of this disease because it can sometimes occur at any age. Some people are said to inherit it from their ancestors that makes it genetic for some but it’s not always essentially a genetic disorder. It is not a very common disorder. Only few people tend to suffer from this ailment.