SLEEP - Luxury or Necessity?
TO SOME PEOPLE, sleep is a waste of time. Preferring a very busy daily schedule of business and social engagements, they only surrender to sleep when extremely tired. In contrast, others, enduring night after night of tossing and turning until the early hours of the morning, would give anything for a good night's sleep.
Why do some find it so hard to sleep, while others are desperate to stay awake? Should we view sleep as a luxury or a necessity? To answer these questions, we need to understand what is going on while we are asleep.
The Mysteries of Falling Asleep
Exactly what makes a person lose consciousness and fall asleep remains a mystery. Researchers, however, have established that sleep is a complex process regulated by the brain and that it obeys a 24-hour biological clock.
As we get older, our sleeping habits change. A newborn sleeps for frequent short periods that total about 18 hours a day. According to sleep specialists, although some adults appear to need only three hours of sleep a day, others need up to ten hours.
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