Introduction and purpose Sleep apnea is a disturbance of sleep that affects about 10% of adult population and is not easily detected due to unspecific symptoms. The aim of this literature review is to present. respectively. obstructive sleep apnea and central sleep apnea symptoms and integrate the available data in the literature regarding the pathogenesis and treatment methods. https://allfixelectricales.shop/product-category/universal-oven-knob/