Sleep disorders are diagnosed through a combination of medical history, physical exam, and certain diagnostic tests. Doctors will first evaluate you for symptoms such as excessive daytime sleepiness, difficulty falling or staying asleep, snoring, and abnormal movements during sleep. They may also ask about your lifestyle habits, stress levels, and medications you are taking. You can Modalert 200 buy online australia for the diagnosis of sleep disorders. The most common diagnostic test for sleep disorders is a polysomnography (sleep study), which records brain activity, oxygen levels, heart rate, and body movements while you sleep. In some cases, overnight oxygen level tests and sleep apnea tests can be done at home. Additionally, questionnaires such as a sleep diary or the Epworth Sleepiness Scale can help you evaluate your sleep patterns and the severity of your symptoms. These assessments will help determine the type of sleep disorder you have, such as insomnia, sleep apnea, narcolepsy, restless legs syndrome, etc., so that you can begin appropriate treatment.