Breathing as a Bridge Between Body and Mind Not Merely Taking In Air, but Learning to Regulate One’s State. Breathing is a fundamental physiological process that occurs largely without conscious thought. At the same time, it is one of the few autonomic functions that can be modified voluntarily: we can slow it down or speed it up, alter its depth, prolong the exhalation, hold the breath, or coordinate it with movement. For this reason, breathing represents a unique point of contact between body and mind. When a person directs attention to breathing, the process is no longer concerned solely with gas exchange. Attention is deliberately turned toward internal sensations: the movement of the chest and abdomen, respiratory rhythm, the effort involved in breathing, and the urge to inhale. This is known as interoceptive attention—attention directed toward signals arising from within the body. The very act of observing the breath is therefore a mental process, even when the breathing pattern itself is not deliberately changed. Attention to breathing, however, does not guarantee relaxation. For many people, the breath can serve as an attentional anchor and help interrupt repetitive thought. For others—particularly during anxiety or panic, or when there is heightened sensitivity to bodily sensations—turning attention inward may actually intensify discomfort. The effect depends on the way the practice is taught, the context in which it is used, and the individual. Stress Changes Breathing—and Breathing Can Modify the Stress Response The relationship between breathing and stress is bidirectional. When the brain evaluates a situation as threatening or highly demanding, it activates arousal mechanisms involving the autonomic nervous system and the hypothalamic–pituitary–adrenal axis. Heart rate and muscular tension may increase, and breathing commonly changes as well: it may become faster, more irregular, more concentrated in the upper chest, or greater than metabolic requirements demand. Frequent sighing and brief breath-holding may also occur. The reverse direction is equally important. Voluntarily changing the breath alters the mechanical and sensory information transmitted from the lungs, respiratory muscles, and cardiovascular system to the brainstem and to neural networks involved in attention, emotion, and autonomic regulation. Slow, comfortable, regular breathing—often approximately five to seven breaths per minute at rest—may temporarily increase respiratory-related heart-rate variability, influence the arterial baroreflex, and produce modest reductions in heart rate, systolic blood pressure, and perceived stress. This does not mean that “the deeper the breath, the greater the relaxation.” Physiologically, carbon-dioxide elimination is determined by total alveolar ventilation, not by breathing frequency alone. Total alveolar ventilation is the volume of fresh air reaching the pulmonary alveoli each minute and actively participating in gas exchange with the blood. Breaths that are excessively large can produce overventilation, reduce CO₂, constrict cerebral blood vessels, and cause dizziness—even when the respiratory rate is slow. The objective is therefore breathing that is moderately slow, quiet, comfortable, and appropriate to metabolic demand, rather than maximal lung filling with every inhalation. From Attention to the Breath to Metacognition Metacognition is often described as “thinking about thinking,” but it actually comprises two related capacities: recognizing what is occurring within our own processes of thought and response, and choosing how to regulate those processes. Merely feeling air pass through the nose is not metacognition; it is bodily awareness. It becomes part of a metacognitive process when a person notices, for example, “I am interpreting this situation as a threat,” “My breathing has become rapid,” or “I am reacting before deciding how I want to act”—and then adjusts the response accordingly. In this sense, the breath can create a point of pause between stimulus and response. It does not erase stress or eliminate emotion; rather, it allows the individual to recognize the situation, reassess it, and choose a more precise course of action. This is particularly relevant during physical training and martial arts, when making decisions in a meeting or a high-stakes negotiation, and at other points of stress. The goal is not necessarily to become loose or drowsy, but to move from uncontrolled arousal toward calm, organized alertness. Body, Breath, and Mind in East Asian Traditions The relationship between posture, breathing, and mental state is not a modern invention. Various East Asian traditions are based on the view that body and mind should not be treated as two separate systems. In Japanese Zen, entering meditation is commonly described as a process of regulating the body, the breath, and the mind. The sequence matters: posture is established first; breathing can then settle; and together they allow a change in the quality of attention. Modern science and traditional practice describe aspects of the same phenomenon in different languages, but the two should not be treated as fully equivalent. Physiological language addresses ventilation, CO₂, heart rate, HRV, baroreflex function, and the activity of neural networks. Traditional language addresses self-cultivation, presence, non-attachment, and the quality of action. Science can examine some of the relevant bodily and psychological processes, but it cannot reduce the full meaning of a traditional discipline to a single physiological measure. Shikantaza—“Just Sitting” Shikantaza (只管打坐), associated particularly with the Sōtō school of Zen and the thought of Dōgen, can be translated approximately as “just sitting.” It is not primarily a technique for producing relaxation, nor is it a breathing exercise based on a fixed inhalation-to-exhalation ratio. In its traditional meaning, the sitting itself is the practice; it is not used merely as an instrument for obtaining an external result. The official instructions of the Sōtō school emphasize an upright back, a stable but unforced posture, slightly open eyes, and quiet nasal breathing. After an initial settling exhalation and inhalation, the breath is allowed to proceed naturally: a long breath remains long and a short breath remains short, without a continuing attempt to control it. Thoughts are not expected to disappear through force. When they arise, they are neither pursued nor resisted; distraction is recognized, and the practitioner repeatedly returns to sitting and posture. Mentally, this differs in an important way from paced breathing. In an exercise involving a four-second inhalation and a six-second exhalation, the practitioner actively modifies a physiological variable. In Shikantaza, the practitioner cultivates non-reactive observation and non-interference. Breathing participates in the organization of body and mind, but it is not necessarily the exclusive focus of attention and is not deliberately manipulated to produce a parasympathetic response. A point of contact with metacognition can nevertheless be identified: the practitioner learns to notice a thought without immediately accepting it as fact or reacting to it automatically. Shikantaza, however, is broader than the psychological concept of metacognition because it is rooted in the philosophical, ethical, and conceptual framework of Zen. The comparison can aid understanding, but it does not make the two concepts identical. Seiza and Mokusō in Martial Arts and Traditional Health-Oriented Methods The correct terms are: Seiza (正座)—the formal Japanese kneeling posture. Mokusō (黙想)—silent reflection or contemplation. In many Japanese martial-arts dōjō, practitioners sit in Seiza and observe a period of Mokusō at the beginning and end of training. The custom, its duration, and its mode of practice vary among martial arts, organizations, and instructors; there is no single historical breathing protocol binding all forms of budō. At the beginning of training, Mokusō establishes a boundary between everyday life and the training space. Its possible function is not to induce drowsiness or eliminate all arousal, but to gather attention, recognize the current condition of body and mind, and prepare for precise action. A person can become calmer while remaining alert, prepared, and capable of responding quickly. This is a transition from distraction or uncontrolled tension toward organized readiness. At the end of training, silent sitting serves a different purpose. It marks the transition from exertion to recovery, allows breathing to settle, and invites an internal review of the session. Practitioners can recognize where they acted effectively, where unnecessary tension arose, and what they should improve next time. Here, Mokusō approaches a metacognitive process of self-monitoring, evaluation, and selection of a strategy for future practice. It should not be assumed that every instance of Mokusō is an abbreviated form of Shikantaza. The former often functions as a pedagogical and ceremonial element within martial-arts training; the latter is a distinct Zen discipline with a much broader context. The direct historical relationship between every dōjō ritual and Zen is not always well documented. It is more accurate to speak of a possible cultural and practical affinity than of a necessary identity. A Complementary Integration of Tradition and Science The traditional approach contributes a framework: posture, repetition, silence, discipline, non-striving, and an understanding of practice as part of the cultivation of the whole person. The scientific approach adds a different set of tools: distinguishing breathing rate from breathing volume, monitoring responses, adjusting dosage, recognizing overventilation, and evaluating safety in relation to health status and the metabolic demands of exertion. This makes it possible to construct an integrated sequence in the dōjō or in modern training: At the beginning of training: a brief period of stable sitting, natural breathing, and observation of the initial state, with the aim of entering a condition of presence and organized alertness. During training: breathing adapted to movement and load, without imposing a resting respiratory rhythm on physical exertion. At the end of training: first allowing ventilation to meet ongoing metabolic demand, followed by quiet or moderately slow breathing and non-judgmental observation of the experience. Thereafter: brief reflection on what changed in breathing, tension, attention, and performance, and what should be adjusted in the next training session. In this way, the approaches complement one another without being conflated. Tradition provides context, quality of practice, and an educational process; science provides mechanisms, measurements, limitations, and principles of safety. Their integration is not intended to “prove” tradition through modern terminology, but to broaden understanding and improve the ability to adapt practice to the individual and the objective. Breathing During Exertion Is Not Breathing at Rest During physical activity, the body produces more carbon dioxide and consumes more oxygen; ventilation must therefore increase. A slow rhythm appropriate for sitting in an office should not be imposed during strenuous exertion. Doing so may create air hunger, impair performance, and encourage compensatory breath-holding. During light or moderate exertion, it may be possible to maintain rhythmic breathing and coordinate exhalation with force production or with a particular phase of movement. At high intensity, respiratory rate and depth must be allowed to increase according to demand, while unnecessary tension in the jaw, neck, and shoulders is minimized. In strength exercises and combat techniques, a distinction must be made between continuous exhalation against mild resistance and breath-holding accompanied by a Valsalva-type strain. These produce different effects on intrathoracic pressure, venous return, and arterial blood pressure. A breathing technique suitable for the office should therefore not be transferred unchanged into physical training. The underlying principles remain—awareness, regularity, and avoidance of unnecessary ventilation—but their application changes according to intensity and purpose. Three to Five Minutes at the End of Activity At the end of a training session, it is advisable to create a transitional phase lasting approximately three to five minutes, once the initial post-exertional breathing has begun to settle. There is no need to “reactivate” the parasympathetic nervous system as though it had been switched off. Both branches of the autonomic nervous system remain active throughout, although exercise is generally followed by a gradual withdrawal of sympathetic activation and a renewed increase in vagal influence on the heart. This transitional phase can be performed as follows: Initially allow breathing to meet metabolic demand, especially after strenuous exertion. Slow the breath gradually, without breath-holding or maximal inhalations. Inhale comfortably through the nose when possible, and exhale gently for slightly longer than the inhalation. As breathing stabilizes, gradually approach approximately five to seven breaths per minute, without imposing a rigid numerical ratio. Direct attention toward the sense of effort, muscular tension, and the quality of performance during the session. There is reasonable evidence that slow breathing can produce short-term improvements in certain autonomic measures and reduce subjective arousal. Evidence that three to five minutes of breathing after exercise significantly accelerates physiological recovery remains limited. HRV measured during paced breathing must also be interpreted cautiously: breathing itself increases oscillations in heart rate, so an immediate rise in HRV does not necessarily demonstrate that the body has recovered from the training load. A brief breathing phase at the end of training may also create favorable conditions for processing the experience: moving from rapid performance to observation, identifying errors, and reconstructing central principles. This is a plausible explanation from the perspectives of attention and metacognition. At present, however, there is insufficient direct evidence that three to five minutes of breathing, by itself, enhances motor-memory consolidation. Skill acquisition also depends on the quality of training, feedback, spacing between practice sessions, rest, and sleep. An Exercise Is Not a Program It is easy to learn an instruction such as “inhale for four seconds and exhale for six.” It is much more difficult to determine whether it is appropriate for a particular person, whether the volume of each breath is excessive, whether the glottis is being closed, whether the exhalation is strained, and what dosage is appropriate. Knowing the instructions for an exercise does not guarantee correct execution; nor does performing an exercise personally confer, by itself, the competence to provide individual instruction or coach others. A professional program includes a defined objective, an initial assessment, technique selection, dosage, progressive practice, feedback, and repeated evaluation of the response. A technique intended to reduce arousal in the office is not identical to one used for regulation between rounds, coping with pain, improving respiratory function, or engaging in traditional martial-arts practice. Before designing a program, several questions should be asked: What is the objective? What is the person’s health status? Are hypertension, asthma, cardiac arrhythmia, a tendency to faint, panic, or respiratory impairment present? How does the person breathe at rest and during exertion? Do dizziness, tingling, or air hunger occur? Only then is it appropriate to select a technique, observe the response, and adjust the dosage. Another important question is whether the practitioner is actually performing the technique correctly. Natural—Yet Requiring Practice Breathing is natural; a breathing technique is not necessarily natural. Once respiratory rate, depth, resistance, the inhalation-to-exhalation ratio, or coordination with movement is deliberately altered, a learned skill is being created. Like any skill, it requires practice, precision, adaptation, and feedback. The aim is not to control every breath throughout the day. It is to develop the ability to recognize when breathing reflects unnecessary strain and to use it appropriately to move toward a more functional state. Breathing is therefore not a magical solution, but an accessible and powerful means of connecting attention, physiological regulation, and conscious choice. For those who practice consistently over time, an efficient breathing pattern can gradually become natural within the routine of daily life. In this sense, East Asian traditions and modern physiology converge around a shared principle: breathing does not operate in isolation. Its significance arises from the relationship between breath, posture, movement, attention, context, and purpose. Yet while science seeks to measure and isolate variables, tradition reminds us that complete practice takes place within the whole person. Further reading sources: The Science and Tradition of Breathing: East Asian Methods, Modern Physiology, and the Integrated Respiratory Regulation Model (IRRM). 15/09/2026 Back to Articles List