If you have symptoms of sleep apnea, your doctor may ask you to have a sleep apnea test, called a polysomnogram (PSG). This may be done in a sleep disorder center or even at home. A polysomnogram -- ...

A narcolepsy diagnosis requires several tests. A doctor will perform a physical exam and an in-depth medical history to rule out other causes of symptoms. Keep in mind that having some of the major ...

When you shop through retailer links on our site, we may earn affiliate commissions. 100% of the fees we collect are used to support our nonprofit mission. Learn more. Up to 70 million Americans have ...

The polysomnogram is a sleep test usually done overnight in hospital to diagnose sleep disorders. But for people who cannot sleep in a strange environment with wires stuck to them, sleep studies can ...