For generations, waking up with a pounding headache, grappling with sudden waves of anxiety, or struggling to keep your eyes open through the workday—regardless of how many hours you spent in bed—has been casually written off as an inevitable byproduct of menstruation, menopause, or the relentless demands of motherhood. The list of accepted explanations truly goes on and on. However, public health experts warn that these vague, pervasive symptoms could actually point toward a serious, systemic medical condition that has historically been mischaracterized as a "male disease": obstructive sleep apnea, or OSA.
If that term instantly conjures the mental image of an older man dozing off on a living room couch and snoring loudly like a lawn mower, you are far from alone. In reality, it was not until the 1990s that medical researchers first began to recognize that OSA—a disorder characterized by the repeated collapse of the upper airway during sleep, causing individuals to repeatedly stop breathing—often manifests in fundamentally different ways in women than it does in men. For starters, women who suffer from the condition frequently do not snore at all, completely upending the traditional diagnostic playbook.
While there is still much to discover regarding the underlying biology driving these distinctions, current research suggests that a complex interplay of hormonal fluctuations across a woman’s lifespan, anatomical differences in the upper airway, and even lingering social stigmas about how women are expected to sleep all play significant roles.
"The disease itself was defined in men," explains Jennifer Martin, PhD, a behavioral sleep medicine specialist and professor at Florida International University’s Herbert Wertheim College of Medicine in Miami. "The way men and women breathe when they’re asleep is not the same, and our definition of the disease doesn’t account for that."
Although obstructive sleep apnea appears to be statistically less common and typically milder in women during their premenopausal years, clinical studies indicate that the long-term consequences of the disease, if left untreated, can be just as severe—if not worse—for female patients. This makes understanding the warning signs and advocating for proper medical evaluation vital.
How and Why Sleep Apnea Differs in Women
Sleep apnea falls under the broader umbrella of sleep-disordered breathing conditions. The most prevalent form is OSA, which occurs when the upper airway repeatedly collapses during slumber, creating a physical barrier that makes it increasingly difficult for air to reach the lungs, notes Anita Valanju Shelgikar, MD, a sleep medicine physician with University of Michigan Health and president of the American Academy of Sleep Medicine.
The textbook symptoms of this condition—which were established based on clinical studies historically dominated by male subjects—include loud, disruptive snoring and dramatic gasps for air as a person desperately tries to resume breathing in the middle of the night. But Dr. Shelgikar emphasizes that this scenario frequently does not apply to female patients. Instead, women dealing with OSA are far more likely to experience vivid nightmares, wake up multiple times throughout the night, struggle to maintain a continuous sleep cycle, and battle chronic insomnia. These disruptions subsequently give rise to secondary symptoms like daytime fatigue, stubborn morning headaches, and unpredictable mood swings. Furthermore, women tend to experience a higher frequency of hypopneas—characterized by shallow breaths accompanied by reduced oxygen flow—whereas men more commonly exhibit apneas, which involve complete, total pauses in breathing.
Some medical experts speculate that snoring may be underreported among women due to social embarrassment, given that societal expectations often frame women as serene sleepers. However, a growing body of scientific literature suggests that biological factors provide a much more accurate explanation for these sex-related symptom differences. Compared to men, women generally possess smaller, structurally more stable upper airways that are significantly less prone to collapsing and vibrating—the mechanical process that produces snoring—during sleep. Additionally, women tend to store less adipose tissue around their necks. Before menopause, they also appear to benefit from the protective physiological effects of estrogen and progesterone, hormones that interact directly with the respiratory system to support normal breathing patterns.
Considering these factors, it is unsurprising that statistical data shows more men in the United States suffer from the condition than women, accounting for roughly 59% and 41% of obstructive sleep apnea patients, respectively. However, once women transition through menopause and their natural production of estrogen and progesterone sharply declines, the prevalence of OSA and the severity of its symptoms increase dramatically, according to Dr. Martin. Clinical studies have revealed that anywhere from 47% to 67% of postmenopausal women suffer from obstructive sleep apnea, putting them on par with men in the same age demographic of 50 and older. The stark discrepancy lies in how many of these women actually receive an accurate diagnosis.
Regardless of age, women routinely report experiencing a higher burden of sleep apnea-related symptoms than men, Dr. Martin adds, even when presenting with a less severe classification of the disorder. This is largely attributed to the fact that women experience more subtle, frequent breathing disturbances throughout the night that cumulatively degrade the overall restorative quality of their rest.
Why Misdiagnoses Are Common in Women with Sleep Apnea
Because female patients frequently fail to exhibit the "classic" presentation of OSA, they are routinely misdiagnosed or have their genuine physical complaints dismissed by healthcare providers.
"When [men] walk into a physician’s office and say they’re sleepy and they snore, they get a diagnostic test right away," Dr. Martin says. "When a woman walks in and says, ‘I don’t sleep well, and I’m very fatigued during the day,’ they don’t often get referred" for proper screening. In fact, existing research suggests that men are nine times more likely to be formally referred for diagnostic testing than women experiencing similar levels of fatigue.
Women with OSA frequently find their symptoms incorrectly attributed to psychiatric or life stage conditions such as clinical depression, generalized anxiety disorder, primary insomnia, or menopausal transitions, or even written off as medication side effects, notes Dr. Shelgikar, who also serves as a neurology professor at the University of Michigan Medical School. Compounding the issue, women can experience these comorbid conditions simultaneously with sleep apnea, which not only obscures the underlying respiratory problem but actively worsens it.
Consider the difficult overlap of insomnia and OSA: having both disorders concurrently is statistically more common among women than men, Dr. Martin points out. In many cases, these patients may be prescribed standard sleep aids, such as diphenhydramine or benzodiazepines, which can inadvertently relax their throat muscles further. This pharmacological intervention can exacerbate their underlying sleep apnea, leaving them even more deprived of adequate oxygen.
The diagnostic criteria for OSA further entrench this gender bias, as they remain largely anchored to how the disease presents in male patients.
"When we diagnose sleep apnea, we require one of two things to happen: A breathing interruption has to be associated either with a drop in oxygen levels or a brief awakening from sleep," Dr. Martin explains. "Women don’t have those very deep drops in oxygen levels that men do. So that means that the way we define the disease itself kind of biases us towards diagnosing it more in men than women."
Furthermore, Medicare—the federal health insurance program relied upon by the vast majority of Americans aged 65 and older—typically only recognizes an official sleep apnea diagnosis if a patient demonstrates those steep, documented drops in blood oxygen saturation, according to Dr. Martin. Typical mid-slumber micro-awakenings do not count independently under these guidelines. Consequently, the established criteria forced upon the medical community remain heavily male-centric.
Home sleep apnea tests, which have surged in popularity as a more affordable alternative to comprehensive in-lab polysomnography, are also notoriously prone to missing the condition in female patients. Because women typically experience fewer and less pronounced respiratory events, these at-home monitoring devices struggle to capture the full picture of the disease in this population. The margin of error widens even further for women who also suffer from insomnia. These individuals may simply not sleep long enough during a home monitoring session to yield an accurate diagnostic readout. If a patient wears the monitoring equipment for six hours but only manages to sleep for four, the data can create a misleading impression that their sleep apnea is far less severe than it actually is.
This systemic oversight indicates that sleep apnea is likely far more prevalent among women than current public health data captures. Ultimately, this leaves countless women without the necessary medical care, a delay in intervention that can trigger a cascading series of preventable health complications.
Why You Should Treat Your Sleep Apnea
If left unmanaged, obstructive sleep apnea can exert profound, damaging downstream effects on overall health, with the cardiovascular system bearing a particularly heavy burden, explains Atul Malhotra, MD, research chief of pulmonary, critical care, and sleep medicine at UC San Diego Health. Every time breathing stops, the body perceives the sudden oxygen deficit as an acute crisis, releasing stress hormones like adrenaline to jolt the brain and body just enough to force a breath. This cycle occurs rapidly, often lasting only a few seconds, meaning the individual usually retains no conscious memory of the event the following morning.
Over time, this relentless nocturnal physiological stress places immense strain on the cardiovascular system, potentially elevating the risk of chronic hypertension, heart attacks, strokes, cardiac arrhythmias, and heart failure. Although clinical evidence remains nuanced, some studies suggest that women with severe sleep apnea may be particularly vulnerable to cardiovascular complications. Research also demonstrates that women often present with a higher accumulation of concurrent health conditions at the time of an OSA diagnosis, including thyroid disorders, asthma, and depression. While this creates a classic clinical chicken-and-egg dilemma regarding which condition preceded the other, treating obstructive sleep apnea consistently yields positive health benefits.
Because OSA destroys the restorative quality of sleep, it is strongly linked to cognitive impairments, memory lapses, and reduced daytime alertness. These deficits can elevate the risk of motor vehicle collisions and workplace accidents, particularly in high-risk professions involving transportation and construction, Dr. Shelgikar notes.
Less frequently discussed is the heavy toll untreated sleep apnea takes on an individual’s emotional well-being, daily functioning, and interpersonal relationships.
"We don’t do a good job thinking about sleep apnea as a potential cause of mental health symptoms," Dr. Martin says. In fact, clinical findings suggest that properly managing and treating OSA can significantly alleviate symptoms for some patients who are concurrently struggling with anxiety and depression.
As medical researchers continue to investigate these sex-based physiological differences, experts emphasize a clear message of optimism: evidence strongly indicates that women benefit just as much as men—if not more—from effective sleep apnea treatment once a proper diagnosis is finally secured.
