POLISOMNOGRAPHY The main method for studying human sleep is POLISOMNOGRAPHY (PSG). POLYSOMNOGRAPHY is a method of recording vital signs during sleep. This name is derived from the

Insomnia (I) is a disorder associated with difficulty initiating (starting) and / or maintaining sleep. The term “insomnia”, often used even by doctors, is inadequate, since objective

Breathing in sleep is normal During sleep, many indicators of the body’s vital activity undergo noticeable changes, this is very indicative of the example of breathing. So,

Narcolepsy is defined in the International Classification of Sleep Disorders as “a disease of unknown etiology characterized by excessive daytime sleepiness, poor quality of night