Sleep Apnea and Cardiovascular Risk

Obstructive sleep apnea (OSA) — repeated pauses in breathing during sleep — is strongly linked to hypertension, atrial fibrillation, heart failure, and increased cardiovascular mortality, yet it remains widely underdiagnosed.

Why the Connection Exists

Repeated drops in oxygen levels and disrupted sleep architecture trigger surges in sympathetic nervous system activity, oxidative stress, and inflammation — all of which contribute to cardiovascular strain over time.

Recognizing the Signs

Loud snoring, witnessed breathing pauses, morning headaches, and excessive daytime sleepiness are common warning signs, though many patients — especially women — present more subtly.

Treatment Helps the Heart Too

Effective OSA treatment, most commonly with CPAP therapy, has been shown to improve blood pressure control and reduce the burden of atrial fibrillation recurrence in many patients.