What is Insomnia?Causes, Signs and symptoms, Diagnosis and treatment

Insomnia is the inability to obtain an adequate amount or quality of sleep. The difficulty can be in falling asleep, remaining asleep, or both. People with insomnia do not feel refreshed when they wake up. Insomnia is a common symptom affecting millions of people that may be caused by many conditions, diseases, or circumstances.
Sleeplessness or insomnia is a symptom and may be caused by “stress, anxiety, depression , disease, pain , medications, sleep disorders, poor sleep habits .. [and] sleep environment and health habits.

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