For years, the story companies told themselves about why women stalled in their careers was a story about ambition — that women “leaned out,” chose family over advancement, or simply wanted it less. The most authoritative data of the past decade have demolished that comfortable narrative. Women are not less ambitious. They are more burned out, more blocked, and — when the pressure becomes too great — more willing to walk out the door in search of something better. Understanding why, and what companies can actually do about it, is one of the most consequential questions in the modern workplace.
The largest study of its kind
The definitive source is Women in the Workplace, the annual study conducted by McKinsey & Company together with LeanIn.org — the largest study of women in corporate America, now in its tenth year and drawing on data from hundreds of companies and hundreds of thousands of employees. Its findings across editions form the backbone of what we know.
The first thing the data establish is that the problem is not a lack of ambition. Recent research, including Gallup’s workplace studies, finds women are actually more engaged at work than men and report stronger motivation to advance — in Gallup’s data, 20% of women described themselves as “extremely motivated” to pursue career growth, against 16% of men. Women want to get ahead. Something else is stopping them.
The “broken rung” — where women actually fall behind
The single most important structural finding from Women in the Workplace is the “broken rung.” The popular image of the barrier to women’s advancement is the glass ceiling at the very top. The data show the more damaging break happens much earlier — at the very first step up to manager.
In the 2024 report, for every 100 men promoted from entry level to manager, only 81 women were promoted. The gap is far worse for women of color: for every 100 men promoted, only about 54 Black women and 65 Latinas moved up. Because this break happens at the first rung, it starves the entire pipeline. Fewer women become managers, so there are fewer women to promote to senior manager, then to vice-president, then to the C-suite. By the time you reach the top, women hold about 29% of C-suite roles — and women of color just 7%. The shortage at the top is not primarily caused by women leaving at the top; it is caused by too few women being let up the first step.
The “Great Breakup” — women voting with their feet
The 2022 edition introduced a phrase that captured a genuine shift: the “Great Breakup.” Its central finding was blunt: “Women leaders are switching jobs at the highest rate we’ve ever seen — and at a higher rate than men in leadership.” The signature statistic was that for every woman promoted to director level, two women directors were leaving their companies.
This was the empirical death of the “women aren’t ambitious” myth. Women were not stepping back from leadership — they were stepping out of companies that failed them and taking their leadership elsewhere. When the researchers asked why, women pointed not to a desire to work less but to specific, fixable failures: they wanted flexibility, they wanted cultures that took wellbeing seriously, and they wanted recognition for their work — including the extra, often uncompensated labour they were doing. Younger women valued these things even more highly, a warning to employers about where the trend is heading.
The burnout gap
Underlying the departures is a measurable stress differential. Gallup’s most recent data (late 2025) find that 31% of women report being burned out very often or always, against 23% of men — an eight-point gap. Among leaders, the gap is similar: about 34% of women leaders report burnout versus 23% of men leaders. Women with children report higher burnout than men with children.
The reason is what researchers sometimes call the “double shift” or “second shift.” As documented throughout this collection, women continue to carry the large majority of unpaid domestic and caregiving work. A woman balancing a demanding career with primary responsibility for children and household is, quite literally, doing two jobs. When one of them — the paid one — also blocks her advancement and undervalues her contribution, the equation becomes unsustainable, and changing jobs becomes the rational response.
There is also the burden of “office housework.” The Women in the Workplace data show that women, and especially senior women, do far more of the undervalued but essential organisational labour — mentoring, diversity work, supporting struggling colleagues, keeping teams functioning — than men, and that this work is rarely rewarded in performance reviews or promotions. Women are asked to do more of the caretaking at work as well as at home, and to do it for less credit.
How companies can actually fix this
The encouraging news is that because the causes are structural and specific, the remedies are too. The evidence points to several concrete actions.
Fix the broken rung first. The most leveraged intervention is not another women’s-leadership conference for senior executives but rigorous attention to that first promotion to manager. Companies that set and track explicit targets for the entry-to-manager step, audit promotion decisions for bias, and hold managers accountable for equitable advancement build a healthier pipeline from the bottom up.
Make flexibility real and stigma-free. The McKinsey data found that flexible and hybrid work is a top driver of retention for women — and, importantly, that women who used flexible arrangements were not disadvantaged in outcomes when the flexibility was genuinely supported rather than quietly penalised. The key is removing the stigma so that using flexibility does not become a career death sentence.
Count and reward the invisible work. If women are doing disproportionate mentoring, diversity and wellbeing work, companies should formally recognise it in performance evaluations and promotion criteria — or redistribute it — rather than allowing it to be an unpaid tax on women’s careers.
Hold managers accountable. Since promotion and daily experience are shaped by managers, tying people-management quality — including equitable treatment and support — to managers’ own reviews and rewards changes incentives where they matter most.
Invest in caregiving support. Paid parental and family leave, especially leave that encourages fathers to take an equal share, along with childcare support, directly relieves the double-shift pressure that drives burnout and departures.
Reduce the everyday friction. Tackling the microaggressions and competence-doubting that the data show a majority of women experience — being interrupted, second-guessed, mistaken for someone junior — improves the daily texture of work that ultimately shapes whether someone stays.
The bottom line
The women changing jobs under the strain of career and family are not opting out of ambition; they are opting out of workplaces that make ambition impossible to sustain. The data are unusually clear that the problem lies in structures — the broken rung, the flexibility stigma, the uncounted labour, the unequal care burden — and not in women’s choices or capabilities. That is, ultimately, good news for employers, because structures can be changed. ### The engagement-burnout paradox
One of the most illuminating findings in the recent data is a paradox that upends the old assumptions entirely. Gallup’s research shows that women are simultaneously more engaged in their work than men and more burned out than men. These two facts seem contradictory — surely engaged employees are happy employees? — but together they tell a precise story. Women are not disengaging or coasting; they are pouring themselves into their work while carrying a heavier total load. High engagement plus high burnout is the signature of people who care deeply and are being asked to do too much with too little support and too little reward. It is exactly the profile you would expect from someone doing a demanding job, plus a second shift of care at home, plus a layer of uncompensated “office housework,” while watching less-burdened colleagues advance past them. The paradox demolishes the “opt-out” narrative: women are leaving not because they have checked out, but because they are maximally invested in circumstances that are unsustainable.
The cost of doing nothing
It is worth being explicit about what employer inaction costs, because the business case for fixing these problems is as strong as the moral one. Turnover is expensive: replacing a senior employee can cost a large multiple of their salary once recruitment, lost productivity and the ramp-up of a replacement are counted. When women leaders leave at higher rates than men — the core “Great Breakup” finding — companies are not just losing people; they are losing disproportionately their diverse leadership, the very leadership that the performance research in this collection associates with stronger results. They are also sending a signal to every junior woman watching: that this is a place where women who reach the top eventually leave. That signal depresses the ambition and retention of the next cohort, compounding the loss. Inaction, in other words, is not a neutral default; it is an active and expensive choice that degrades the talent pipeline year after year.
Flexibility, done right and done wrong
Because flexible work emerged from the data as such a powerful retention lever, it deserves a closer look — including its failure modes. The promise of flexible and hybrid arrangements is that they let people meet demanding caregiving responsibilities without sacrificing their careers, and the McKinsey data confirm women value this highly. But flexibility can backfire when it is stigmatised. If employees who work flexibly are quietly seen as less committed, passed over for the most visible assignments, or penalised at promotion time, then flexibility becomes a trap — a “mommy track” that lets women stay employed while quietly ending their advancement. The evidence is clear that the benefit is realised only when flexible work is genuinely normalised, used by senior leaders and men as well as junior women, and decoupled from any judgment about commitment. The lesson for employers is that offering flexibility is not enough; they must actively manage the culture around it so that using it does not become career suicide. The same applies to parental leave: leave that men are subtly discouraged from taking reinforces the very imbalance it was meant to relieve.
Manager accountability as the linchpin
If there is a single point of leverage that ties all the remedies together, it is the frontline manager. Managers make the promotion recommendations that determine whether the broken rung gets fixed. Managers set the daily tone that determines whether flexibility is real or stigmatised. Managers distribute the assignments — the visible, career-making projects versus the invisible “office housework” — and decide what gets recognised at review time. Managers are where microaggressions are either checked or tolerated. Yet in most organisations, managers are neither trained nor rewarded for any of this; people-management is treated as a soft skill secondary to hitting numbers. The evidence-based fix is to make equitable, supportive management a measured and rewarded part of every manager’s own performance evaluation — to hold them accountable for the advancement, workload and experience of the women on their teams, just as they are held accountable for revenue. Culture is not set by mission statements; it is set by what managers are actually rewarded for doing, and until that changes, the structural fixes will not stick.
The companies that fix them will not only retain their most engaged and ambitious talent; on all the evidence in this collection, they will perform better for having done so.
Sources: McKinsey & Company and LeanIn.Org, Women in the Workplace 2024 and the 2022 “Great Breakup” edition; Gallup, Women Show Stronger Employee Engagement Amid Higher Burnout (2025).