Which sleep disorder is the most common in the adult population?

The most common sleep disorder in the adult population is sleep apnea. This disorder is characterized by repeated interruptions in breathing during sleep, which can lead to fragmented sleep and a host of other health issues. Sleep apnea can occur in its most common form, obstructive sleep apnea, where the airway becomes blocked during sleep, often due to relaxation of the throat muscles.

Its prevalence is notable, as factors including obesity, age, and anatomical features contribute to its occurrence, making it a widespread concern in the adult population. Individuals suffering from sleep apnea may experience excessive daytime sleepiness, fatigue, and increased risk for cardiovascular problems, making awareness and diagnosis crucial.

The other disorders listed, such as narcolepsy, restless leg syndrome, and insomnia, while prevalent, do not match the widespread occurrence of sleep apnea among adults. Insomnia, for instance, is common but typically affects sleep initiation or maintenance rather than the breathing pattern itself during sleep. Therefore, sleep apnea's significant impact on both sleep quality and overall health solidifies its status as the most common sleep disorder in adults.