When the brain runs out of road, willpower alone won’t get you far
Workplace burnout affects one in two Australians and costs businesses $39 billion annually. Behavioural neuroscientist, Charul Mishra explains why trying harder doesn’t work — and what organisations can do before the cracks appear.
Takeaways
- Why people are quietly burning out at work
- The three signs of burnout and how to spot them
- What science shows about early intervention
Are you struggling to focus or feel like you’re not as effective as you could be? Do making decisions feels harder than they used to be? You’re not alone. And the problem isn’t your motivation.
“What I see far more often is an issue with mental load,” says behavioural neuroscientist, Charul Mishra.
“Like peak-hour on a highway, when your mind is carrying more traffic than it can handle, there will be a traffic jam. Each task – the emails, the meeting prep, the playdates to organise – is another car merging onto an already-congested road. Individually, they seem manageable, but together, everything grinds to halt.”
And just like you can’t solve a traffic jam by honking louder, you can’t push through cognitive overload by simply trying harder. Because when you do, things will only feel harder, and you’ll start to disengage, lose focus and eventually burn out.
With one in two Australians facing workplace burnout, it’s a crisis that will eventually reach most organisations’ bottom line.
What’s fuelling burnout – and why now?
“Burnout costs businesses $39 billion each year in lost productivity, absenteeism and turnover.”
SafeWork Australia, 2024
Several forces are converging to make it worse, according to Mishra.
“Polycrisis, constant changes and a heavier load on certain genders and sectors have a significant impact on people’s ability to cope,” she says.
AI, touted as the next great productivity tool, is quietly growing people’s workload making them feel more stretched than before. Some sectors are hit harder by burnout than others: agriculture, financial and the public sector and frontline roles carry more risk. And the invisible load is the icing on the cake, especially for women, who spend an extra hour on unpaid work (like household chores) a day than men. Three-quarters say they have suffered from burnout in the last 12 months.
And underneath it all is the same signal: a brain and body that have been asked to carry too much for too long.
The brain on fire: The physiology of exhaustion
When stress becomes chronic, the body adapts. Researchers call this the allostatic load – the cumulative weight our bodies have to carry in a constant state of physiological alarm.
“Stress hormones reshape brain chemistry, alter immune function and rewire hormone signalling,” Mishra explains. “The brain builds a new, exhausted baseline and starts operating from there.”
The most affected region is the prefrontal cortex, the part of the brain that manages focus, decision-making, working memory and emotional regulation. When it’s overloaded for too long, those functions start to erode.
“That’s why burnout doesn’t just feel bad. It shows up as slower thinking, poor decisions, emotional reactivity, and an inability to concentrate on things that actually matter,” says Mishra.
What does that look like at the organisational level? Your most experienced people, the ones you depend on for judgment and leadership, are the ones most likely to be quietly operating at a fraction of their cognitive capacity.
For women, the load can be even more complex. Hormonal shifts across the menstrual cycle, postpartum, and perimenopause affect sleep, stress sensitivity and energy regulation. It doesn’t mean women are less resilient – it means their body regulates stress differently.
Mishra urges employers to think about it this way, “Burnout is not a failure of willpower, easily fixed with a better attitude. It is the brain and body asking for a break and a chance to recover.”
How to recognise the signs of burnout?
The World Health Organisation defines burnout across three dimensions, and understanding them is the difference between catching it early and managing the fall out:
- Exhaustion – a deeper sense of energy depletion a good night’s sleep doesn’t fix. Even simple tasks begin to feel heavier than they should.
- Mental distance or cynicism – driving disengagement from work. People still show up and get work done, but they’re less emotionally connected. Things that once mattered begin to feel frustrating, hollow or hard to care about.
- Inconsistent performance – working just as hard with less impact. Small mistakes start to creep in, decisions take longer and performance becomes less consistent.
“I rarely see these signs arrive together,” Mishra says. “They surface gradually, quietly, until one day someone takes extended leave, resigns or makes a costly mistake. By then, you’re not managing risk, you’re managing consequences.”
How to get ahead of burnout
The organisations protecting their people well are starting to measure cognitive performance before the cracks appear – tracking focus, response time, task-switching ability and mood over time, at a team level. When indicators start trending in the wrong direction, they act.
They also equip people with practical tools, says Mishra.
“I see even 60 seconds of mindfulness practice two to three times helps regulate the nervous system. Turning off the always-on notifications that keep stress hormones cycling through the system after hours and regular brain training to improve cognitive agility can make a noticeable difference.”
They apply the same logic as preventative maintenance on any high-value asset. The cost of doing it is a fraction of the cost of not.
The benefits of proactively managing stress
When you are armed with the tools to understand and manage stress, boost your resilience and build your cognitive muscles you feel more focused, more present. The mental fog starts to lift and things seem clearer.
“When the load reduces and people can manage stress better, their nervous system gets a chance to reset, allowing their prefrontal cortex to recover. They’ll think clearer, make better decisions and show up as the best version of themselves,” Mishra says.
Imagine if every person in your organisation had the tools they needed to think, feel and perform better. Imagine if you could also measure your team’s burnout risk before the signs show up and track their progress.
Walk the Dragon’s enterprise resilience platform does just that.
