Self-care is not a reward for when the work calms down. The work will not calm down.

I have a confession that will surprise nobody who has ever worked in a demanding role.

For a long time, I treated looking after myself as something that happened after the important things were done. Exercise, rest, proper food, time that was genuinely mine and not just leftover minutes at the end of a day that had already taken everything. Those things were on the list. They were consistently at the bottom of it. And every time the work got busy, which was most of the time, they were the first things that quietly disappeared.

The logic felt completely reasonable. There is only so much time. The work is urgent. The people depending on me are real. A run or an early night or a morning without emails is not urgent in the same way, so it moves down the list, and then further down, and then off it entirely. And in the short term, nothing terrible happens. You adapt. You manage. You keep going.

What I did not fully understand for longer than I would like to admit is what was actually happening to my leadership while I was busy keeping going.

This article is not about bubble baths. It is about what a depleted nervous system does to the people around you, and why looking after yourself is less a personal indulgence and more a professional responsibility.

1. The real-world scenario

What is happening in your brain when you are running on empty

When the body experiences sustained pressure without adequate recovery, it produces cortisol, the primary stress hormone, in increasing quantities. In short bursts, cortisol is useful. It sharpens attention, mobilises energy, helps you perform under pressure. That is what it is designed to do.

The problem is chronic exposure. Research published in Nature Neuroscience links prolonged elevated cortisol to measurable structural changes in the hippocampus, the brain region most involved in memory and learning. Chronic cortisol also impairs the prefrontal cortex, the part of the brain responsible for rational decision-making, strategic thinking, impulse control, and the kind of considered judgment that leadership actually requires.

In practical terms: the more depleted you are, the more you are leading from the parts of your brain that are least equipped for leadership. Decision-making gets faster and worse. Emotional reactions arrive more quickly and are harder to interrupt. Patience shortens. Nuance disappears. You become, in a very neurologically specific way, less good at the job while feeling like you are working harder at it than ever.

The brain adapts to chronic stress by prioritising efficiency over complexity. And complexity, the ability to hold multiple perspectives, sit with ambiguity, regulate your own response while reading someone else's, is exactly what good leadership consists of.

2. What may be happening

The part that most leaders have not considered

Here is the piece that changes things when it lands properly.

Your nervous system does not just affect your own performance. It actively shapes the experience of everyone around you.

This is not a metaphor. It is a neurological mechanism called co-regulation, and it has been documented extensively in research on leadership and team dynamics. The nervous system is a social organ. It is designed to read the state of other nervous systems and respond to them. When a leader is regulated, calm, and steady, the people around them have a physiological experience of safety that makes them more open, more creative, more willing to speak honestly and take considered risks.

When a leader is dysregulated, running on depleted resources and chronic stress, even when they are saying all the right things, their team feels it. Research on stress contagion, including a comprehensive longitudinal study covering 5,688 employees and their managers, found that manager stress creates measurable increases in employee stress levels that persist for a full year after the initial transmission. A 2002 study by Barsade on affective contagion confirmed that moods and energy states spread rapidly through groups, directly influencing performance, cooperation, and trust.

You can walk into a room having had a terrible morning and say entirely the right things and the people in that room will still tighten. Their shoulders will come up slightly. The conversation will become slightly more careful. Nobody will have decided to do this. Their nervous systems will simply have responded to yours before their conscious minds had any say in the matter.

This is what nobody tells you when they talk about leadership presence. Presence is not a performance. It is a physiological state that your team can feel, and it is directly connected to how well you are looking after yourself.

3. Why it lands harder than expected

What I recognise in myself

I can tell when I have been running too hard for too long before anyone else can. Not because I am particularly self-aware, but because there are specific signals I have learned to notice.

The quality of my listening changes first. I am hearing people but not quite landing inside what they are saying. I am processing words rather than meaning, which is a different and considerably less useful thing in a coaching conversation or a difficult discussion.

My patience for ambiguity shortens. The situations that I can normally sit with, not knowing the answer yet, letting something develop, become uncomfortable faster than they should. I start wanting resolution before resolution is actually available.

I become slightly more certain than the evidence warrants. This is the one I find most interesting and most concerning in myself. Tiredness has a way of collapsing nuance. The more depleted I am, the more convincing my own first reaction seems, and the less I naturally interrogate it.

None of this is catastrophic on a single day. Accumulated over weeks, it changes the quality of what I bring to the work. And because it happens gradually, it is easy not to notice until something goes wrong and you find yourself wondering when exactly you stopped operating at your best.

4. What actually helps

The story we tell ourselves about this

The narrative most high-performing leaders have about self-care is that it is something they will do properly once things settle down.

The things do not settle down. This is not a temporary phase. It is the nature of the role. If you are waiting for a quieter period to start sleeping properly, exercising consistently, or taking genuine time away from the work, you are waiting for a condition that leadership does not reliably produce.

There is also a more uncomfortable version of this story, the one underneath the first one.

Many leaders are not just busy. They are using busyness as a regulatory strategy. The constant activity provides stimulation, purpose, and a reason not to sit with anything uncomfortable. Rest is threatening not because there is no time for it but because the quiet it creates is unfamiliar and brings things to the surface that the busyness has been keeping at bay.

I am not immune to this. There is a version of overworking that feels like commitment and is actually avoidance, and the two are not always easy to distinguish from the inside.

5. What to try next

What this actually looks like in practice

Not a morning routine. Not a twelve-step protocol. A few honest questions worth sitting with.

What does recovery actually look like for you? Not what you know you should do. What genuinely restores you. For some people it is exercise. For some it is solitude. For some it is the kind of social time that is genuinely replenishing rather than another form of performance. The answer is personal and it is worth knowing specifically, because the generic advice is rarely what actually works.

What are you currently using to manage your nervous system that is making things worse? Alcohol, excessive caffeine, late nights, skipping food, constant low-level screen time: these things feel like management and are mostly escalation. They address the surface sensation of stress without touching the underlying state, and they add biological depletion on top of an already depleted system.

Where is the depletion showing up in your leadership before you notice it consciously? For me it is listening quality and tolerance for ambiguity. For others it is patience with direct reports, or the quality of their strategic thinking, or the emotional temperature of their communications. Knowing your specific signal means you can respond to it before it becomes visible to the people around you.

What are you genuinely not doing that you know would help? Not the long list. The one thing. The thing that has been on the list and keeps moving. That is worth more attention than another tool or framework.

6. What to notice

The case for taking this seriously

I work with leaders who are genuinely good at their jobs and genuinely exhausted. Not all of the time, but often enough that it has become their baseline without them quite noticing when that happened.

The exhaustion is not a personal failing. The pace is real, the demands are real, and the culture in most organisations actively rewards the appearance of endless capacity. Saying you are tired, or that you need to slow down, or that the current pace is not sustainable, still carries a professional risk in many environments that saying you have a broken leg does not.

But the cost of not addressing it is not personal in the way that cost is usually framed. It is not just your health or your wellbeing or your longevity in the role, although it is all of those things. It is the quality of the environment you are creating for the people who work with and around you, every single day, whether you intend to or not.

You cannot project calm you do not have. You cannot regulate a room from a nervous system that is itself dysregulated. You cannot bring the complexity, nuance, and steadiness that leadership requires from a brain running on cortisol and insufficient sleep.

Looking after yourself is not a reward for when the work is done. It is part of how the work gets done well.

The sooner that stops feeling like a nice idea and starts feeling like a professional obligation, the better the leadership tends to get.

Looking after yourself is not a reward for when the work is done. It is part of how the work gets done well.

7. What to design around the role

Three things tend to make a more substantial difference.

Know what actually restores you

Name the kind of recovery that genuinely changes your state, not the generic version you think you should choose.

Spot what escalates stress

Notice the coping habits that look like management but leave your nervous system more depleted.

Learn your earliest leadership signal

Identify where depletion shows up first: listening, ambiguity, patience, certainty or communication temperature.

Choose the one thing you are not doing

Forget the long list. Start with the one recovery practice that keeps moving down the list and needs to become protected.

8. Questions to reflect on

Use these to notice where editing has become the default.

01What genuinely restores me, rather than simply distracting me?
02What am I using to manage stress that is actually making depletion worse?
03Where does depletion show up in my leadership before I notice it consciously?
04What is the one recovery practice I keep postponing that needs to become protected?

Takeaway

Self-care is not a side issue. Your nervous system affects how you listen, decide, respond and shape the room around you. Recovery is part of the work because leadership requires a brain and body with enough capacity to do it well.

Keep the next step clear.

9. Continue this pathway

Previous guide

Nobody tells you that founding a company can be one of the loneliest things you will do

Go back if you want the step that led into this idea.

When you become the emotional shock absorber for everyone else

Read this next to keep moving through the pathway in order.