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Restless legs syndrome (RLS) causes an unpleasant prickling or tingling in the legs, especially in the calves, that is relieved by moving or massaging them. This sensation creates a need to stretch or…

• Another disease or mood disorder. The most common causes of insomnia are depression and/or anxiety disorders. Neurological disorders such as Alzheimer’s or Parkinson’s…

Think of everything you do during your day. Try to guess which activity is so important you should devote one-third of your time to doing it. Probably the first things that…

Long the material for jokes, snoring is generally accepted as common and annoying in adults but as nothing to worry about.

However, snoring is no laughing matter. Frequent, loud snoring is often a…

Myth 1: Sleep is a time when your body and brain shut down for rest and relaxation.
No evidence shows that any major organ (including the brain) or regulatory system in the…

Many factors can prevent a good night’s sleep. These factors range from well-known stimulants, such as coffee, to certain pain relievers, decongestants, and other culprits. Many people depend on the caffeine in coffee, soft…

Animal studies suggest that sleep is as vital as food for survival.

Rats, for example, normally live 2 - 3 years, but they live only 5 weeks if they are deprived of…

Most people are aware of the hazards of drunk driving. But driving while sleepy can be just as dangerous. Indeed, crashes due to sleepy drivers are as deadly as those…

A number of tasks vital to health and quality of life are linked to sleep, and these tasks are impaired when you are sleep deprived.

Learning, Memory, and Mood
Students…

Eastward travel generally causes more severe jet lag than westward travel because traveling east requires you to shorten the day, and your biological clock is better able to adjust to a longer day…

Sleep was long considered just a uniform block of time when you are not awake. Thanks to sleep studies done over the past several decades, it is now known that sleep has distinct stages…

Although you may put off going to sleep in order to squeeze more activities into your day, eventually your need for sleep becomes overwhelming and you are forced to get some sleep. This…

REM Sleep
Usually first occurs about 90 minutes after you fall asleep; cycles along with the non-REM stages throughout the night.
Eyes move rapidly, with eyelids closed.
Breathing is more rapid,…