A recent discussion highlights the frequent misinterpretation of symptoms associated with obstructive sleep apnea (OSA) as typical signs of aging, particularly among older adults. OSA, a condition that involves frequent interruptions in breathing during sleep, can occur more than 30 times an hour in severe cases. Those affected often report excessive daytime fatigue as a primary indicator that their sleep is disrupted. However, many individuals may not experience noticeable tiredness, complicating diagnosis.

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David Rapoport, an internist and research director at the Icahn School of Medicine at Mount Sinai, noted that a significant number of older adults may not exhibit the typical symptom of daytime sleepiness. A review published in 2026 in Sleep Medicine Reviews indicated that OSA may present differently in those over 65, sometimes manifesting as cognitive issues such as memory lapses or concentration difficulties that can easily be dismissed.

This misunderstanding is crucial, as untreated OSA can lead to reduced oxygen levels, hypertension, and fragmented sleep, resulting in cascading health issues affecting various organs, including the brain, as explained by David Gozal, dean of the Joan C. Edwards School of Medicine.

The 2018 Journal of the American Geriatrics Society survey found that 56% of older adults reported high risk for OSA based on symptoms, but only 8% had undergone testing. The lack of typical daytime symptoms might be why many cases go unrecognized. Cognitive impacts can include difficulties with attention, problem-solving, irritability, and short-term memory issues.

Kristine Yaffe, a professor at the University of California at San Francisco, explained that even if older adults do not feel extremely tired, they might experience a sense of “fog” due to fragmented sleep. With age, sleep quality naturally declines, leading to less deep and REM sleep.

The transient cognitive symptoms associated with poor sleep can resemble typical aging signs, often overlooked in solitary individuals who lack observation from a partner who might notice sleep disturbances like loud snoring or breathing interruptions.

Research suggests that untreated OSA may result in long-term cognitive decline and could potentially be linked to Alzheimer’s disease. Chronic oxygen deprivation from repeated breathing interruptions can induce detrimental changes in the brain, as indicated by Rapoport.

In recent studies, treating OSA with continuous positive airway pressure (CPAP) therapy has been associated with a slower rate of cognitive decline.

Older adults should consult a doctor if they exhibit signs such as loud snoring, morning headaches, cognitive impairment, or fatigue. A definitive diagnosis typically requires a sleep study, which gathers information about a patient's sleep patterns.

In cases where OSA is confirmed, treatments can include CPAP or alternative devices that adjust jaw position. New medications like Zepbound are also approved for treating moderate to severe OSA in adults with obesity. Further research is essential to establish a clearer connection between treating sleep disorders and preventing cognitive decline.