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PART 1: Why Am I So Tired - Understanding Burnout

Over 70% of us experience burnout. Learn how your brain chemistry, nervous system, and environment contribute — and why the stage you're in matters most.

Chris Scott, Psychologist / Director at 3 Big Things

Chris Scott

Psychologist / Director

· 4 min read

A close-up of a weathered hand resting on a worn wooden beam, softly lit against a dark forest background.

Remember when work and life felt manageable? Now you're fatigued before your first meeting, and the "Sunday scaries" starts on Saturday. You're not alone — over 70% of us experience burnout at some point.

Here's what's really happening: burnout is like working against the grain of wood. Go with the grain? Smooth sailing. Against it? Splinters, resistance, eventually the wood cracks. That's burnout — persistently ignoring what your body, mind, and spirit actually need.

Burnout is a state of chronic exhaustion and disengagement that develops when stress stays high and recovery stays low. Although it's formally classified as work-related, the same pattern can show up in caregiving and other demanding responsibilities.

Your Brain on Burnout

Your wellbeing depends on the balance of four brain chemicals, what one psychologist (TJ Power) calls your DOSE:

  • Dopamine: Your motivation and reward chemical
  • Oxytocin: Your connection chemical
  • Serotonin: Your confidence and contentment chemical
  • Endorphins: Your natural pain-relief and mood-booster

When you're healthy, these flow naturally. But in burnout your body responds to stress and gives you what it thinks you need. You start replacing real connection with scrolling, natural endorphins with caffeine, and healthy dopamine hits with quick hits from sugary foods or addictions or frantic productivity.

There's another layer: your nervous system has an unconscious alarm system called neuroception, constantly scanning for safety or threat. Think of it like a ladder with three rungs:

  • Top rung: Safe, calm, connected — your DOSE flows naturally
  • Middle rung: Fight-or-flight mode — dopamine spikes but everything else crashes
  • Bottom rung: Complete shutdown — all DOSE chemicals depleted

Burnout is getting stuck on those lower rungs, unable to climb back to safety.

Why Your Environment Matters

While we've talked about what happens in your mind and body, the reality is that your environment — your workplace culture, organizational policies, workload expectations, and societal pressures — plays a massive role in whether you burn out or thrive. Change is often needed within organisations and communities, and we need changes to policies and approaches that promote healthy ways of working. This is especially relevant in Aotearoa's government and business sectors, where workplace cultures can either support or undermine wellbeing.

When your environment demands constant availability, rewards overwork, lacks psychological safety, or makes it difficult to set boundaries, your nervous system stays locked in threat mode regardless of how many self-care strategies you try. The environment signals to your neuroception whether you're safe or under threat — and if your workplace consistently signals threat (unrealistic deadlines, inadequate resources, lack of autonomy, toxic dynamics), your DOSE chemistry will deplete no matter how much you meditate or exercise.

True recovery from burnout requires both individual nervous system regulation and environmental change. Sometimes that means having difficult conversations with your manager about workload. Sometimes it means advocating for better organizational policies. Sometimes it means recognizing that the system is broken and you need to find a healthier work environment. Your wellbeing isn't just about managing your internal state — it's about ensuring your external environment supports, rather than sabotages, your hauora.

The Stages of Burning Out

Stage 1: The Stress Response

You can't switch off. Your body starts responding without you noticing. Quality sleep becomes difficult even though you're exhausted. You're still performing well on the outside, but inside you're starting to run on fumes. Your dopamine spikes from constant tasks at work and home, but your serotonin and oxytocin are quietly depleting.

Stage 2: The Energy Crisis

Often fatalism and cynicism creeps in. Work that mattered feels pointless. You're aware you feel mentally and physically tired all the time, you may get physically sick as your immune system is impaired. Your dopamine system is depleted, your endorphins are low, and genuine connection (oxytocin) feels unrealistic.

Stage 3: The Wall

This is getting closer to full collapse. You feel emotionally numb or volatile. Your body breaks down — chronic pain, digestive issues, complete exhaustion. You're seriously considering quitting not because you have a plan, but because continuing feels impossible.

From a Te Ao Māori perspective, this is what happens when we violate Hauora — holistic wellbeing across mind (taha hinengaro), body (taha tinana), relationships (taha whānau), and spirit (taha wairua). Your mauri, your life force, is depleted.

Why This Matters

The stage you're in determines recovery time. Catch it at Stage 1? A few weeks of intentional rest and boundary-setting. Hit Stage 3? Months of recovery, usually requiring professional support.

But here's the hope: recovery is possible at every stage. You just need to stop working against your grain, help your nervous system find safety again, and restore your DOSE chemistry naturally.

In Part 2, we'll explore exactly how to do that — using practical strategies that work with your body's wisdom, not against it.

At 3 Big Things we structure our sessions to help you get what you need to leave a session feeling understood and practically supported. Want to book a session now?

Chris Scott, Psychologist / Director at 3 Big Things

Written by

Chris Scott

Psychologist / Director

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