Why successful older women can feel like failures
MELBOURNE: At the height of their careers, a significant number of high-performing women begin to experience a tangible shift in cognitive stamina. Not a collapse of ability, but a change in the effort required to sustain it.
Finding words under pressure. Holding multiple threads of a complex problem across a long day. Recovering quickly after a demanding meeting. Tasks that once felt automatic begin to require more.
These changes are typically attributed to stress or burnout, both real and important factors. But in many cases, they reflect something more specific – adaptive changes in how the brain produces and uses energy. These changes are directly tied to the hormonal shifts of the menopause transition.
The menopause transition is almost always framed in terms of physical symptoms: hot flushes, night sweats, with little to no sustained attention paid to its cognitive dimension.
This is a significant misreading. The female brain undergoes substantial structural and functional changes during this time, on a scale comparable only to puberty and pregnancy.
The difference is that this transition happens in the middle of a career when the stakes are highest.
Oestrogen plays a central and underappreciated role in the brain. It influences how the brain uses glucose for energy, how neurotransmitters are produced, how mitochondria function, and how effectively neural communication is maintained.
As oestrogen levels fluctuate dramatically during perimenopause and then decline, this disrupts how efficiently the brain can meet its energy demands.
The result? Brain fog, difficulty concentrating and cognitive fatigue all signalling one thing: a supply and demand problem. The brain’s requirements remain high while its capacity to meet them becomes less reliable.
The brain accounts for only 2 per cent of total body weight, but about 20 to 25 per cent of total energy expenditure. When the efficiency of that system shifts, performance does not disappear. It becomes more effortful and more variable.
This is not a disease process. It is a neurobiological transition, and by nature, a temporary one. The brain is rewiring itself in significant ways. The problem is not the transition itself. It is the absence of any professional or institutional language for what is happening.
For many, these changes are not progressive. They are dynamic and usually temporary. In some cases, women report a return to baseline or even improved cognitive stability following the transition, although individual experiences vary.
“My brain’s ticking over, but my mouth’s not catching up. My team must think, how come she’s our boss?”
Neuroimaging studies of women at different stages of the menopause transition show measurable, transient changes in the prefrontal cortex, the region most closely associated with executive function: sustained attention, strategic thinking, rapid decision-making, and the management of complex, competing information.
These are precisely the functions on which professional performance at senior levels depends. They are also the functions most sensitive to disruptions in energy availability, sleep quality and stress.
Sleep disruption is a near-universal feature of the menopause transition, and its cognitive consequences are compounding. Even modest reductions in sleep quality are associated with measurable changes in attention, working memory, and decision-making consistency.
In environments that demand high executive function across long, cognitively dense working days, these effects are not trivial.
At Western Sydney University’s NICM Health Research Institute, we spent time with peri- and postmenopausal women whose working lives had been reshaped by cognitive and mood changes during the transition. Their accounts were striking. Not for how unusual they were, but for how consistent. And for how carefully hidden.
The workplace emerged as the place where changes became most visible, most consequential and least acknowledged.
Women described the erosion of confidence and the specific, private anxiety about judgment from their teams and peers. “I’m sitting in meetings and I lose my words and I go silent. My brain’s ticking over, but my mouth’s not catching up. My team must think, how come she’s our boss?”
The fear of disclosure was persistent. “I actually think it would do me a lot of harm, in fact, to talk about it,” one woman said.
A pattern was clear. Women at the height of their professional capacity, with decades of accumulated expertise and institutional knowledge, were beginning to doubt whether they belonged in the roles they had earned. They were concealing the experience because disclosure felt more dangerous than silence.
According to a report by the Association of Superannuation Funds of Australia, about 160,000 Australian women enter menopause each year and an estimated 20,000 shift from full-time to part-time work. About 10,000 leave the workforce temporarily. Several thousand retire prematurely.
The Australian Federation of Medical Women, a non-profit whose members are female doctors, estimates menopause-related workforce disruption costs the Australian economy between $10 billion and $17 billion annually through lost earnings, workforce attrition, productivity impacts and replacement costs.
This is not a niche issue. It is a senior talent pipeline problem, playing out at scale inside organisations that have largely not developed the frameworks to recognise it.
Policy responses are still evolving. A federal Senate enquiry is currently investigating the impact of menopause on the Australian workforce, with proposals ranging from greater flexibility, workplace adjustments and introduction of reproductive leave.
In parallel, there is ongoing debate about how to best support women without reinforcing stigma, introducing unintended discrimination, or influencing how capability and leadership potential are perceived.
What the evidence does show is consistent: outcomes depend on the interaction between symptom burden and workplace demand.
Flexibility, managerial awareness, and accessible support consistently emerge as the variables that determine whether women remain functional in high-demand roles during the transition.
No single intervention is a silver bullet, but the pattern is clear enough to act on.
What the women in our study asked for was not complex. They were not asking for accommodation or exception.
They were asking for menopause to be treated as pregnancy is treated — as a recognised, temporary stage of working life that warrants awareness, flexibility, and managerial understanding, rather than stigma and silence.
The distinction matters. Pregnancy is managed in most organisations not because it is easy but because it is understood. Menopause is not yet understood in the same way. That is the gap.
At an organisational level, the case is about accurate interpretation and management. The environments that place the highest demands on executive function – continuous attention, rapid decision-making, high information load, constant context-switching – are precisely the environments most likely to expose and amplify the effects of this transition.
Designing for cognitive sustainability is not a concession to limitation. It is how high-performance environments are increasingly understood to operate at their best, for everyone. The organisations that move first on this will not be acting on altruism.
They will be acting on the recognition that senior women at peak capability represent irreplaceable institutional knowledge and that the cost of losing them to a transition that was manageable is a loss that compounds.
Cognitive performance is not a fixed trait. It is state-dependent, sensitive to biology, to sleep, to energy, to the demands of an environment that rarely accounts for any of these.
What organisations routinely read as a decline in performance is often something more specific, and more temporary: a capable professional navigating a neurobiological transition in a workplace that has not yet developed the capacity to see it.
When that transition is understood, the interpretation changes. When it is not, the consequences are predictable and unnecessary.
The difference is not semantic. It determines who stays, who leaves, and what is quietly lost when they do.