What is one of the primary uses of polysomnography in clinical practice?

One of the primary uses of polysomnography in clinical practice is to evaluate sleep disorders. Polysomnography is a comprehensive test that records various physiological parameters during sleep, such as brain activity (via EEG), eye movements (via EOG), muscle activity (via EMG), heart rate, and breathing patterns. This data allows healthcare professionals to diagnose and classify different sleep disorders, including sleep apnea, insomnia, narcolepsy, and REM sleep behavior disorder, among others. By understanding the specific sleep-related issues a patient is experiencing, appropriate treatment plans can be developed to improve the patient's overall sleep quality and health outcomes.