Do you ever feel sleepy or “zone out” during the day? Do you find it hard to wake up on Monday mornings? If so, you are familiar with the powerful need for sleep. However, you may not realize that sleep is as essential for your well-being as food and water. Sleep and sleep-related problems play a role in a large number of human disorders and affect almost every field of medicine.
Click here for more information. http://www.ninds.nih.gov/disorders/brain_basics/understanding_sleep.htm