03/01/2026
A study of nearly 1 million U.S. veterans has found that having both insomnia and sleep apnea at the same time dramatically increases the risk of high blood pressure and cardiovascular disease compared to having just one condition. The combination is called COMISA and it creates a dangerous cycle. Insomnia makes it hard to fall asleep or stay asleep, while sleep apnea causes repeated pauses in breathing during the night. When both happen together, your heart and blood vessels never get the critical recovery time they need to rest, repair, and reset. Doctors typically treat these as separate conditions, but researchers say treating one while ignoring the other is like bailing water out of a boat without fixing the leak. The good news is that both conditions are common, measurable, and treatable. The study suggests that evaluating sleep as routinely as other major cardiovascular risk factors could significantly alter the course of heart disease.
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Source: Journal of the American Heart Association - Yale School of Medicine