Interestingly, Dr. Andrew Weil, a University of Arizona physician and popular natural-medicine author, has long advocated a "four-square" breathing exercise that instructs patients to inhale for a ...

Box breathing gets its name because you’re encouraged to think about drawing an imaginary box while completing the exercise. It’s also sometimes called square breathing or four-square breathing.

Box breathing is also known as resetting the breath or four-square breathing. It is easy to do, quick to learn and can be beneficial in stressful situations.