Sleep apnea is a serious sleep disorder where breathing repeatedly stops and starts during sleep, often unnoticed by the individual. Being tested is crucial because untreated sleep apnea can lead to high blood pressure, heart disease, stroke, diabetes, and daytime fatigue that increases the risk of accidents. Early diagnosis allows for timely intervention, such as CPAP therapy, lifestyle changes, or oral appliances, which can significantly improve sleep quality, overall health, and daily functioning. Testing also helps identify the severity and type of apnea, guiding personalized treatment. Proactive evaluation safeguards long-term health and enhances quality of life.