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.

What means deep breathing?

: to breathe deeply : to take a lot of air into the lungs Take a deep breath and relax.

What is deep breathing in psychology?

Introduction. Breathing practice, also known as “diaphragmatic breathing” or “deep breathing,” is defined as an efficient integrative body–mind training for dealing with stress and psychosomatic conditions.