A persistent daytime headache, a racing mind at 3 a.m., or the exhaustion that lingers despite seven hours in bed—these symptoms often get dismissed as stress, aging, or the demands of motherhood. But for many women, they may instead signal obstructive sleep apnea (OSA), a disorder that causes the airway to collapse repeatedly during sleep, cutting off oxygen. For decades, OSA was treated as a “male disease,” its symptoms defined by the loud snoring and gasping of middle-aged men. Women experience OSA differently, and far less is known about how to recognize it in them.
Research from the 1990s was among the first to confirm that women with OSA often do not snore at all. Instead, they may wake up frequently, struggle to maintain sleep, or suffer from insomnia, mood swings, and morning headaches. These symptoms rarely match the textbook description of OSA, which was developed using data overwhelmingly from male patients. “The disease itself was defined in men,” says Jennifer Martin, a behavioral sleep medicine specialist at Florida International University.
Biological differences contribute to the disparity. Women’s upper airways are generally narrower and more stable, making them less prone to collapse—and thus less likely to snore—than men’s. Before menopause, estrogen and progesterone appear to offer some protection, interacting with the respiratory system in ways that support breathing. But once menopause arrives, the drop in these hormones reverses the trend: studies show that 47% to 67% of postmenopausal women have OSA, matching the rates seen in men over 50. Yet fewer women receive a diagnosis.
One reason is that women’s symptoms are frequently misattributed to other conditions. Fatigue gets blamed on stress or depression; insomnia is assumed to stem from menopause or medication. Anita Valanju Shelgikar, a sleep medicine physician at the University of Michigan, notes that women are nine times less likely than men to be referred for OSA testing. Even when tested, the diagnostic criteria, based on steep oxygen drops during sleep, favor men. Medicare, which covers most Americans over 65, only recognizes OSA if those drops occur, ignoring the milder, more common disturbances women experience.
Home sleep tests, which have become a cheaper alternative to in-lab studies, further complicate diagnosis. Because women with OSA often have fewer and subtler breathing disruptions, these tests may miss the condition entirely. The result is a condition that could worsen heart health, cognitive function, and mental well-being going untreated in far too many women.
How untreated sleep apnea harms women’s health
Untreated OSA carries serious risks. Each pause in breathing triggers a surge of adrenaline, straining the cardiovascular system over time. Studies suggest women with severe OSA face a higher risk of heart disease, stroke, and irregular heartbeats than men with the same diagnosis. The disorder also impairs memory, increases accident risks, and may worsen anxiety or depression, symptoms that, when left unaddressed, create a damaging cycle. “We don’t do a good job thinking about sleep apnea as a potential cause of mental health symptoms,” Martin says.
Yet treatment works as effectively for women as it does for men. The challenge lies in obtaining an accurate diagnosis. Experts recommend tracking daytime energy levels, noting sleep disruptions, and advocating for referrals to sleep specialists, especially if primary care providers dismiss symptoms as unrelated to OSA. For women who suspect they may have the condition, the path to treatment starts with persistence.
Women who suspect they may have OSA often encounter resistance when seeking evaluation. A common barrier is the assumption that their symptoms are psychological or hormonal rather than physiological. The test itself, limited to six hours of monitoring, recorded only two mild breathing disruptions, which fell below the threshold for a diagnosis. However, a later in-lab study revealed 15 hypopneas per hour, a pattern consistent with untreated OSA contributing to her fatigue and anxiety.
Diagnostic challenges extend to the tools used in testing. In-lab polysomnography, considered the gold standard, captures more subtle breathing disturbances than home tests. Yet even these studies may overlook women’s symptoms if technicians focus solely on oxygen desaturation events. This discrepancy explains why some women receive conflicting diagnoses, one provider may rule out OSA based on a home test, while another, reviewing the same data, suspects an underlying issue.
Treatment gaps and women’s CPAP struggles
Treatment options, once diagnosed, are largely the same for women and men: continuous positive airway pressure (CPAP), oral appliances, or lifestyle changes like weight management. Yet women report higher rates of CPAP intolerance, often due to discomfort or claustrophobia. A 2021 study published in Sleep Medicine found that women were twice as likely as men to discontinue CPAP within a year, partly because the masks were designed with male facial structures in mind. Some clinics now offer smaller or hybrid masks, but access remains limited. For those who cannot tolerate CPAP, positional therapy, sleeping on one’s side, can reduce symptoms, though evidence for its effectiveness in women is mixed.
Beyond medical interventions, experts emphasize the role of advocacy. Women who push for referrals to sleep specialists often find their concerns taken seriously. One writer who shaved their head in 2023 to improve airflow noticed their OSA symptoms worsen afterward, a reaction linked to altered neck anatomy. After sharing their experience online, they were connected with a sleep physician who adjusted their CPAP settings, resolving the discomfort. Such accounts highlight how personal experiences can bridge gaps in medical understanding, though they are no substitute for systemic change.
The most pressing question remains why women’s OSA is so frequently overlooked. Part of the issue lies in how symptoms are framed: fatigue in men is often linked to OSA, while in women it is more likely attributed to stress or overwork. This bias persists even when women present with classic risk factors, such as obesity or a family history of the disorder. Until diagnostic criteria and provider training evolve to reflect women’s presentations, the gap in care will persist.
Cognitive decline and overlapping health risks
The stakes are high. The condition also accelerates cognitive decline, with some research suggesting women with OSA experience memory lapses and slower processing speeds years earlier than men with similar diagnoses. These risks are compounded when OSA coexists with other conditions, such as thyroid disorders or depression, which are more common in women and can exacerbate sleep fragmentation. Yet few women receive guidance on managing these overlapping issues.
For now, the best course for those suspecting OSA is to document symptoms meticulously, tracking sleep quality, daytime alertness, and any physical discomfort, and insist on a referral to a sleep specialist. Some clinics now use extended monitoring or specialized questionnaires tailored to women’s symptoms, though availability varies by region. The goal is not just to secure a diagnosis but to ensure treatment addresses the full range of how OSA manifests in women, from subtle breathing patterns to the broader impact on health and well-being.
In 2024, the American Academy of Sleep Medicine updated its guidelines to recommend broader screening for women, particularly those over 50 or with risk factors like obesity or hypertension. The changes reflect growing recognition that OSA in women requires different diagnostic approaches. Yet challenges remain, including the need for better-trained providers and more accessible testing options. Until then, women must advocate for themselves, pushing for evaluations that go beyond standard criteria and recognizing that their symptoms may not fit the traditional mold.
