What is the most likely physical complication of untreated sleep apnea?

The most likely physical complication of untreated sleep apnea is cardiovascular disease. Individuals with sleep apnea experience repeated interruptions in breathing during sleep, which can lead to decreased oxygen levels in the blood. These repeated episodes of hypoxia can result in increased strain on the cardiovascular system.

Over time, untreated sleep apnea can contribute to various cardiovascular issues, including hypertension (high blood pressure), arrhythmias (irregular heartbeats), heart failure, and an increased risk of heart attacks and strokes. The relationship between sleep apnea and cardiovascular disease is well-documented in research, indicating that individuals with sleep apnea have a significantly elevated risk compared to those without the condition.

While other conditions like obesity, diabetes, and insomnia can also be associated with or exacerbated by sleep apnea, the direct and severe impact of untreated sleep apnea on cardiovascular health makes it a notable primary complication.