Breathing: Our Unseen Communication Tool With Ourselves, Others, and Even Robots

Breathing, often taken for granted as a simple biological necessity, plays a far more complex role than merely supplying oxygen and removing carbon dioxide. It serves as a fundamental means of communication, not only with others but also with oneself and even with artificial intelligence or artistic expressions.

Unlike involuntary functions like heartbeat or digestion, breathing can be temporarily brought under conscious control. This is because the automatic rhythm of breathing is managed by the central nervous system, specifically neurons in the spinal cord, with the cerebral cortex capable of overriding these automatic centers. This unique ability allows humans to speak, sing, whistle, and play wind instruments. The process involves pausing breathing, inhaling deeply for vocal power, and controlling exhalation to modulate tone and create sentences.

Beyond enabling speech, breathing is a visible and audible signal of our internal state. A sigh can express impatience, fatigue, anger, relief, or surprise. More subtly, the depth, speed, and rhythm of breathing, along with its sound, reflect our physiological condition, whether we are sleeping, exercising, ill, or stressed. A calm person breathing deeply and evenly differs significantly from someone experiencing anxiety, who might breathe shallowly and rapidly. Joy and excitement are often associated with irregular, intermittent breathing.

Research suggests that synchronized breathing, whether conscious or unconscious, can foster a sense of closeness and encourage cooperation between individuals. Each person also possesses a unique breathing pattern, akin to a distinct gait. Furthermore, the brain constantly processes signals from the respiratory system, using them to coordinate cognitive functions such as memory and decision-making. Studies indicate that memory recall for images can be enhanced during inhalation compared to exhalation, suggesting breathing also facilitates internal communication with our own brains. Altering breathing patterns can positively impact mental states, particularly in promoting calmness, which is central to many relaxation techniques.