Cardiac spasm, also known as Achalasia, is a rare disease of the esophagus, ranked second after esophageal cancer. The overall frequency is 6 cases/100,000 population/year.

Armpit odor is a condition in which the armpits secrete an extremely unpleasant, strong odor that makes the patient feel self-conscious, self-conscious, and lack confidence in communication, making daily activities difficult.