Sleep Apnea in Men: The Condition Behind the Snoring

Snoring is treated as a punchline and a domestic irritation. For a large number of men it is the only outward sign of a condition that raises blood pressure, wrecks daytime function, roughly doubles the odds of erectile dysfunction, and goes undiagnosed about eighty percent of the time.

What it actually is

During sleep the muscles holding your upper airway open relax. In obstructive sleep apnea the airway narrows or closes entirely, airflow stops or drops, blood oxygen falls, and the brain briefly wakes you enough to restore muscle tone and reopen the airway. You breathe, you fall back asleep, and it happens again.

Severity is counted as the apnea-hypopnea index — events per hour of sleep. Five to fifteen is mild, fifteen to thirty is moderate, above thirty is severe. Someone with severe OSA may be waking, at least at the level of brain activity, several hundred times a night without any memory of it in the morning.

That is the reason the daytime symptoms are so out of proportion to what the person thinks happened. They were in bed for eight hours. They did not sleep for eight hours.

How common, and how missed

The most-cited global estimate puts 936 million adults aged 30 to 69 in the mild-or-worse category and 425 million at moderate-to-severe. Men are affected roughly two to three times as often as women in the general population, though the gap narrows sharply with age — by 70, up to 90% of men show at least mild OSA on testing.

The number that matters more than any of those: approximately 80% of moderate-to-severe OSA remains undiagnosed. This is not a rare condition being caught appropriately. It is a very common condition being missed at scale.

The reason is structural. The symptom that would identify it happens while you are unconscious, and the person best placed to report it is a bed partner who has learned to sleep through it or moved to another room.

The signs that are not snoring

Plenty of people snore without apnea. These are the features that shift it from noise to a reason to get tested:

• Witnessed pauses in breathing, or gasping and choking that wakes you
• Waking unrefreshed regardless of how long you were in bed
• Daytime sleepiness — falling asleep in front of the television, in meetings, at traffic lights
• Morning headache, or a dry mouth and sore throat on waking
• Waking to urinate more than once a night, which men routinely attribute to their prostate
• Blood pressure that will not come down on medication
• Concentration and irritability problems that look like burnout or low mood

That last one causes real misdiagnosis. Fatigue, flat mood, poor concentration and low libido in a man in his forties is a presentation that frequently gets a testosterone test and sometimes a prescription, when the actual problem is that he has not had a night of consolidated sleep in three years. The overlap with how depression presents in men is close enough that it is worth ruling out one before treating the other.

Screening yourself in eight questions

The STOP-Bang questionnaire is the standard screening instrument. It is eight yes-or-no items:

In a pooled analysis of sleep-clinic populations, a score of three or more detected 94% of moderate-to-severe cases and 96% of severe cases. Specificity is poor — 34% and 25% respectively — which is exactly what a screening tool should look like. It is built to miss almost nobody, at the cost of flagging plenty of people who turn out fine.

Note the last two items. Being male and having a thick neck each score a point on their own. A 52-year-old man with a 17-inch collar and treated hypertension is already at three before he answers a single question about his sleep.

The erectile dysfunction link

This is the part that gets men through the door when the sleep argument does not.

A 2026 systematic review found erectile dysfunction prevalence of 59% to 69% in men with OSA, against 13% to 34% in comparison groups. Pooling seven studies of 594 men, the correlation between apnea-hypopnea index and IIEF erectile function score was −0.43 — worse breathing, worse erections, at moderate strength. Oxygen saturation correlated in the opposite direction, as you would expect if the mechanism runs through nocturnal hypoxia and endothelial damage.

What that does not establish is that treating the apnea fixes the erections. A randomised trial of 75 men with both conditions gave one arm CPAP and postponed treatment in the other for three months. The CPAP group’s erectile function score improved by 4.6 points, which was significant within the group — but the between-arm difference did not reach significance, and only sexual satisfaction separated the groups. The authors declined to conclude that CPAP works as a stand-alone ED treatment.

The larger systematic review of CPAP and PDE5 inhibitors points the same way: the combination outperforms either alone. If you have both problems, treat both. Do not expect the mask to do the work of the tablet, and do not expect the tablet to fix a man who is being strangled forty times an hour. The ED section covers the drug side.

Getting tested

Two routes. A home sleep apnea test is a small kit — a nasal cannula, a chest band, a finger oximeter — worn for a night in your own bed. It is cheaper, more convenient and adequate for uncomplicated cases where suspicion is high. It can underestimate severity, because it cannot tell sleep from lying still.

An in-lab polysomnogram measures brain activity and sleep stages as well as breathing. It is the reference standard and the right choice if the home test is negative but the suspicion persists, or if there is heart or lung disease in the picture.

Either way, the referral usually starts with a primary care doctor and the eight questions above. Say the words “I want a sleep study.” Vagueness about tiredness will get you a blood panel.

What treatment actually delivers

CPAP is the mainstay: pressurised air splints the airway open. Adherence is the whole game — the trial above achieved a median 5.3 hours a night, which is respectable and still not a full night. Mask fit and humidification are the difference between a device that changes your life and a device in a cupboard. If the first mask is intolerable, that is a fitting problem, not a verdict.

Mandibular advancement devices — custom dental appliances that hold the jaw forward — are a genuine alternative for mild-to-moderate disease and for people who cannot tolerate CPAP. Less effective per night, often better tolerated, and the arithmetic sometimes favours the one you will actually wear.

Weight loss reduces severity, sometimes substantially, and OSA is one of the conditions where the newer weight-loss medications have been studied directly. That is covered in the GLP-1 article.

Positional therapy matters if your events are concentrated on your back, which the sleep study will tell you.

One thing treatment will not do: raise your testosterone. A meta-analysis of seven studies and 232 men found no effect of CPAP on total testosterone — a standardised mean difference of −0.14, confidence interval spanning zero, holding across treatment durations and study designs. If low testosterone and sleep apnea are both present, they are two problems, not one problem with one fix. What testosterone treatment does and does not do is a separate question.

And if you drink to fall asleep, that is worth unpicking too — alcohol relaxes the upper airway muscles and makes apnea measurably worse on the nights you use it. More on that here.

This article is for information only and is not medical advice. It cannot account for your individual circumstances. Talk to a doctor about your own situation, particularly before starting or stopping any prescription medication.