How to Stay Calm

Edited and approved by Stephen C. Rose, PhD, MS

The world rewards speed. Faster decisions. Faster delivery. Faster responses. Over the past two decades, phones and remote work have quietly erased many of the pauses that once separated one demand from the next: the commute without notifications, lunch without a screen, or an evening in which nobody expected an immediate reply.

The body notices that pattern. Not usually through one dramatic breakdown, but through repetition. When urgency becomes normal, the brain becomes quicker to scan for the next problem, the muscles stay slightly braced, and attention becomes harder to disengage. You may be sitting still while your nervous system behaves as though something is about to happen.

The useful news is that calm is not simply a personality trait or the absence of activity. It is a regulated state that can be practiced. You do not have to escape your life to reach it. You can send the brain and body a different set of signals in the middle of an ordinary workday.

Calm Is an Active Brain State

Under manageable conditions, the prefrontal cortex - the region behind the forehead that supports planning, judgment, working memory, and impulse control - helps keep behavior flexible. During intense or uncontrollable stress, chemical signals involving norepinephrine and dopamine can weaken prefrontal networks and shift control toward faster, more habitual responses [1]. That is useful when immediate action is required. It is less useful when the "emergency" is an inbox, a difficult conversation, or six deadlines competing for attention.

Stress also involves networks that include the amygdala, hypothalamus, brainstem, and autonomic nervous system. These systems coordinate vigilance, heart rate, blood pressure, breathing, and stress hormones. Acute activation is not inherently harmful; it is part of normal adaptation. The problem is repeated activation without enough recovery. Over time, chronic stress can alter the function and structure of brain regions involved in emotion, memory, and decision-making [2].

Calm, then, is not a brain that has switched off. It is a brain that can correctly judge the level of threat, maintain access to executive control, and return the body toward baseline after a challenge. The key word is flexibility. A healthy nervous system can mobilize when necessary and settle when the demand has passed.

What Polyvagal Theory Gets Right - and Where Caution Is Needed

Polyvagal theory has become a popular way to describe states of safety, social engagement, fight-or-flight activation, and shutdown. Stephen Porges proposed that distinct vagal pathways help organize these behavioral states [3]. Many people find that language intuitive and clinically useful.

However, the theory's core evolutionary and anatomical claims remain disputed. A detailed 2023 review argued that several foundational premises are not supported by comparative anatomy and current autonomic physiology [4]. That does not mean the lived experiences described by the model are imaginary. People clearly do move between engagement, agitation, and withdrawal. It means those experiences should not be presented as proof of a simple three-circuit hierarchy in the vagus nerve.

The better-established view is less dramatic but more accurate: sympathetic and parasympathetic influences interact continuously, the brain integrates information from the body and environment, and context determines whether a response is helpful. You do not need to accept every claim of Polyvagal theory to use breathing, muscle relaxation, movement, attention, and social connection as practical tools.

Breath Is a Fast, Accessible Lever

Breathing is unusual because it is both automatic and voluntarily controllable. Changing its pace alters mechanical and sensory information coming from the lungs, chest wall, blood vessels, and cardiovascular system. Slow breathing also changes respiratory sinus arrhythmia - the normal speeding and slowing of heart rate across the breathing cycle - and can strengthen baroreflex function, the feedback system that helps stabilize blood pressure [5].

A 2022 systematic review and meta-analysis found that voluntary slow breathing reliably changes several measures of heart rate variability, particularly while the breathing is being performed [6]. The most commonly studied range is roughly five to six breaths per minute, although there is no single perfect rhythm for everyone. The goal is not to inhale the largest possible volume of air. Overbreathing can lower carbon dioxide and cause tingling, lightheadedness, or more anxiety. The goal is quiet, comfortable, slower breathing.

Brief practice can matter. In a randomized study, five minutes a day of structured breathwork for one month improved mood and reduced respiratory rate; an exhale-focused "cyclic sighing" practice performed especially well in that study [7]. This is encouraging evidence, but it does not prove that one breathing pattern is universally best or that breathwork replaces treatment for an anxiety disorder.

What Humming May Add

Humming naturally lengthens the exhalation and gives attention a simple sensory target. It also creates vibration in the upper airway. What is not established is the common claim that humming directly "stimulates the vagus nerve through the pharyngeal branch" in a way that produces an immediate ventral-vagal reset.

Early research suggests that humming breathing can influence heart-rate-variability measures and emotional state, but the evidence is still preliminary. A 2025 pilot investigation comparing slow-paced breathing with humming breathing found autonomic and affective changes, but it was small and cannot isolate a special vagal effect of vibration from the effects of slow breathing and prolonged exhalation [8]. Humming is reasonable to use if it feels calming. It should be described as a promising breathing variation, not a proven neurological shortcut.

Try This: A Two-Minute Midday Reset

Use this between meetings, before a difficult phone call, or when you notice that your body is moving faster than the situation requires.

1. Orient first. Look around and identify three neutral objects. This reminds the brain that you are in a specific room at a specific moment, rather than inside an anticipated future problem.

2. Release unnecessary effort. Let the shoulders fall, soften the hands, and allow a small space between the upper and lower teeth. You are not trying to become limp. You are removing muscle activity that is no longer serving a task.

3. Breathe gently through the nose for about five seconds, then exhale for five to seven seconds. Repeat three to five times. Keep the breath small enough that it remains comfortable.

4. If you like, hum softly during the exhale. Treat the humming as a pacing and attention tool, not as a medical procedure.

If breath-focused practice makes you dizzy, panicky, or dissociated, stop. Return to normal breathing and use an external anchor such as feeling your feet on the floor, naming objects in the room, or walking slowly. Relaxation practices are generally safe, but a minority of people - especially those with trauma histories or certain psychiatric conditions - can experience increased anxiety or intrusive thoughts [9].

The Longevity Argument Needs Precision

Heart rate variability, or HRV, describes variation in the time between heartbeats. In many settings, lower HRV is associated with poorer health and reduced adaptability. A large systematic review and meta-analysis involving 38,008 participants found that lower values across several HRV measures predicted higher all-cause and cardiac mortality [10].

That finding is important, but it is often oversold. HRV is not a direct meter of "how calm you are," and a high reading does not guarantee health. Age, genetics, fitness, sleep, breathing pattern, medications, alcohol, illness, recording duration, posture, and device quality can all affect it. Some popular interpretations - especially the claim that the low-frequency/high-frequency ratio precisely measures sympathetic-versus-parasympathetic balance - are not physiologically reliable [11].

The responsible conclusion is that autonomic flexibility is associated with health, while causation is more complicated. Slow breathing can raise HRV during practice, but that does not automatically mean a two-minute exercise extends lifespan. The stronger longevity strategy is broader: regular physical activity, adequate sleep, meaningful relationships, treatment of medical conditions, and reliable methods for recovering after stress.

Build Recovery Into the Day

The nervous system learns from repetition. A ten-minute practice once a month cannot compete with twelve hours of daily urgency. Small, frequent interruptions are more realistic: two quiet breaths before opening email, a short walk after a tense meeting, relaxed visual focus while looking out a window, or five minutes of deliberate breathing at the same time each day.

The aim is not permanent parasympathetic dominance. You need activation to exercise, solve problems, defend boundaries, and meet deadlines. The aim is to stop carrying yesterday's activation into today's ordinary moments.

I have taught breath and movement practices for 25 years and have maintained my own daily practice for more than 2,000 consecutive days. The value is not mystical. Practice makes the transition into calm more familiar, faster, and easier to access under pressure.

Calm is not the absence of speed around you. It is the ability to keep speed from taking permanent control inside you. That ability is trainable - one accurate signal, one recovery period, and one repeated practice at a time.

The full Zen57 framework, including breath techniques, movement sequences, and daily practice clips, is available at zen57.com and linkedin.com/in/sambalooch.

References

1. Arnsten AFT. Stress signalling pathways that impair prefrontal cortex structure and function. Nat Rev Neurosci. 2009;10(6):410-422.
2. McEwen BS. Physiology and neurobiology of stress and adaptation: central role of the brain. Physiol Rev. 2007;87(3):873-904.
3. Porges SW. The polyvagal perspective. Biol Psychol. 2007;74(2):116-143.
4. Grossman P. Fundamental challenges and likely refutations of the five basic premises of the polyvagal theory. Biol Psychol. 2023;180:108589.
5. Zaccaro A, Piarulli A, Laurino M, et al. How breath-control can change your life: a systematic review on psycho-physiological correlates of slow breathing. Front Hum Neurosci. 2018;12:353.
6. Laborde S, Allen MS, Borges U, et al. Effects of voluntary slow breathing on heart rate and heart rate variability: a systematic review and a meta-analysis. Neurosci Biobehav Rev. 2022;138:104711.
7. Balban MY, Neri E, Kogon MM, et al. Brief structured respiration practices enhance mood and reduce physiological arousal. Cell Rep Med. 2023;4(1):100895.
8. Woo M, Kim T. Effects of slow-paced breathing and humming breathing on heart rate variability and affect: a pilot investigation. Physiol Behav. 2025;299:114972.
9. National Center for Complementary and Integrative Health. Mind and Body Approaches for Stress and Anxiety: What the Science Says. Updated January 2024.
10. Jarczok MN, Koenig J, Mauss D, et al. Heart rate variability in the prediction of mortality: a systematic review and meta-analysis of healthy and patient populations. Neurosci Biobehav Rev. 2022;143:104907.
11. Billman GE. The LF/HF ratio does not accurately measure cardiac sympatho-vagal balance. Front Physiol. 2013;4:26.