By Eric Anthony Jones, known publicly as Ruler In Peace™

Short answer: To regulate your nervous system is to notice your body's level of arousal (breath, heart rate, muscle tension, urgency) and to influence it enough that the signal informs your next choice instead of making it for you. Regulation is not staying calm all the time. It applies to excitement and good news as much as to fear.

Most answers to this question begin with threat: a hard conversation, a deadline, bad news. That is real. But the body does not mobilise only for danger. It mobilises for change.

When the psychiatrists Thomas Holmes and Richard Rahe published the Social Readjustment Rating Scale in 1967, they asked people to rate how much readjustment each life event demands, "regardless of the desirability of this event." Marriage anchored the scale. "Outstanding personal achievement" and vacation are on it too. Events people hope for still ask a life to reorganise around them.

The psychologist James Gross, whose 1998 review helped define the field, describes emotion regulation as "the processes by which individuals influence which emotions they have, when they have them, and how they experience and express these emotions." In the same paper he notes, drawing on Parrott (1993), that individuals "increase, maintain, and decrease negative and positive emotions." Regulation covers the welcome feelings too.

On August 17, 2026, in Bangkok, my Morning Fire™ reflection turned to a moment that many explanations of regulation skip:

"Something you wanted begins to appear. And the nervous system does not necessarily respond with uncomplicated celebration. Sometimes it responds with pressure. Sometimes disbelief. Sometimes urgency. Sometimes the old reflex to immediately turn the arrival into another assignment."

A little further on, the reflection lists the voices that arrive with it:

"Fear can speak. Ambition can speak. Excitement can speak. Impatience can speak. Recognition hunger can speak. Gratitude can speak. Responsibility can speak. Exhaustion can speak. They all get heard. Not all of them get to govern."

Read beside Gross's definition, those lines describe the same skill from the inside. Nothing on that list is silenced. Each signal is allowed to speak. What regulation decides is which of them gets to steer.

Regulation does not have to mean switching arousal off. Research on reappraisal suggests that trying to shut it down is not always the most useful move.

Across studies involving karaoke singing, public speaking and math performance, Alison Wood Brooks of Harvard Business School found that "an overwhelming majority of people believe trying to calm down is the best way to cope" with pre-performance anxiety. Yet participants who reappraised their anxious arousal as excitement felt more excited and performed better than those who tried to calm down (Brooks, 2014).

Jeremy Jamieson, Matthew Nock and Wendy Berry Mendes found a related effect in the body. Participants instructed to think about their arousal during a stressful task as functional and adaptive showed more adaptive cardiovascular responses than participants in the control conditions, including increased cardiac efficiency and lower vascular resistance, along with less attentional bias toward negative information (Jamieson, Nock and Mendes, 2012).

In neither study was the instruction to remove the arousal. What changed was what it was taken to mean, and so what it was allowed to decide. The reflection puts that distinction in four words: "SIGNAL IS NOT COMMAND."

The reflection does not stop at fear. It turns to possibility:

"Because panic is not limited to bad news. Human beings can panic around possibility too. We can rush because something is finally happening. We can overwork because an opening appears. We can abandon the practices that helped us become available for the opportunity because we are suddenly too busy managing the opportunity."

Then it gives an example from my own practice:

"I have already seen that paradox. Preparing to introduce Morning Fire while almost skipping Morning Fire because I was preparing to introduce Morning Fire."

In the same reflection I wrote: "That contradiction was not merely funny. It was instructive. The practice cannot become disposable the moment the practice begins producing something I value."

This is where regulation stops being a concept. An opening arrives, urgency rises, and urgency can make the slowest part of the day look like the most expendable.

Breath is one part of the stress response a person can change on purpose, and it is one of the better-studied routes.

A systematic review of 15 studies on slow breathing in healthy people (fewer than 10 breaths per minute) found increases in heart rate variability, together with reports of more comfort, relaxation and alertness and fewer symptoms of arousal, anxiety, anger and confusion (Zaccaro et al., 2018).

A remote randomized controlled study at Stanford compared three daily five-minute breathing practices with five minutes of mindfulness meditation over one month. The breathing practices, especially cyclic sighing, which emphasises long exhalations, produced greater improvement in mood and a larger reduction in respiratory rate than meditation (Balban et al., 2023).

Neither study promises that a breath will settle every situation. Together they suggest that a short, repeated practice can measurably shift physiological arousal.

Put together, the research and the reflection point to one answer. Regulating your nervous system involves:

The Bangkok reflection states the last point plainly: "THE NEXT ACTION IS ENOUGH." It also names what is at stake when the pace picks up: "Protect the body that has to carry the work."

That is why it refuses to treat the practice as a warm-up for something more important: "Morning Fire is not preparation for my life. Morning Fire is part of my life." Morning Fire™ is the daily practice that reflection came from. How it works, and what it helps with, is described here: https://www.rulerinpeace.com/30-day-reset.

Regulation is not reserved for bad days. It is also what lets a person stay present long enough to receive a good one. The reflection asks it directly: "Can I say thank you before I say what next?"

I wrote the reflection during The Peacemaker's Passage™ (https://www.rulerinpeace.com/the-peacemaker-s-passage), my multi-country lived inquiry into what helps human beings remain capable of peace when peace becomes difficult. For the larger question behind this work, see Remain Capable of What? (https://www.rulerinpeace.com/blog/remain-capable-of-what).

Staying capable when life gets loud, whether the news is hard or good, is the question REMAIN CAPABLE — Weekly Intelligence takes up each week. Issue 001 is free to read, a welcome into the inquiry before you decide whether to become a Founding Reader: https://www.rulerinpeace.com/remain-capable

Eric Anthony Jones, known publicly as Ruler In Peace™, is the founder of The Peacemakers Movement™. Through writing, music, keynotes, teaching, and daily practice, he explores human sustainability and the capacities that help us remain capable of peace.

Balban, M. Y., Neri, E., Kogon, M. M., et al. (2023). Brief structured respiration practices enhance mood and reduce physiological arousal. Cell Reports Medicine, 4(1), 100895. https://doi.org/10.1016/j.xcrm.2022.100895

Brooks, A. W. (2014). Get excited: Reappraising pre-performance anxiety as excitement. Journal of Experimental Psychology: General, 143(3), 1144–1158. https://doi.org/10.1037/a0035325

Gross, J. J. (1998). The emerging field of emotion regulation: An integrative review. Review of General Psychology, 2(3), 271–299. https://doi.org/10.1037/1089-2680.2.3.271

Holmes, T. H., and Rahe, R. H. (1967). The social readjustment rating scale. Journal of Psychosomatic Research, 11(2), 213–218. https://doi.org/10.1016/0022-3999(67)90010-4

Jamieson, J. P., Nock, M. K., and Mendes, W. B. (2012). Mind over matter: Reappraising arousal improves cardiovascular and cognitive responses to stress. Journal of Experimental Psychology: General, 141(3), 417–422. https://doi.org/10.1037/a0025719

Zaccaro, A., Piarulli, A., Laurino, M., et al. (2018). How breath-control can change your life: A systematic review on psycho-physiological correlates of slow breathing. Frontiers in Human Neuroscience, 12, 353. https://doi.org/10.3389/fnhum.2018.00353

Eric Anthony Jones | Ruler In Peace™