As a respiratory expert, I can explain that while the term "breathing through your stomach" is a bit of a misnomer, it's often used to describe a type of breathing known as diaphragmatic or deep breathing. When you engage in diaphragmatic breathing, the diaphragm, which is a muscle that separates the thoracic cavity from the abdominal cavity, contracts and moves downward. This action creates a vacuum, drawing air into the lungs and causing the chest to rise and the belly to expand. So, in a sense, you're not actually breathing through your stomach, but the stomach moves as a result of the diaphragm's action during deep breathing. read more >>

Diaphragmatic breathing, or deep breathing, is breathing that is done by contracting the diaphragm, a muscle located horizontally between the thoracic cavity and abdominal cavity. Air enters the lungs and the chest rises and the belly expands during this type of breathing.read more >>