Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
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Rapid Eye Movement Study - Sleep Study
Overview & Description
A sleep study, or polysomnogram, continuously measures and records brain and body activities during sleep.
Who is a candidate for the procedure?
A sleep study may be performed if a person has:
How is the procedure performed?
The procedure takes place in a sleep study lab over the course of the night. It is important to try to duplicate normal sleep patterns. Heavy exercise should not be done on the day of the study. A person should also avoid:
Usually, the person arrives at the lab around 9 p.m. for the study. A technologist will attach electrodes to the skin and scalp. This may take an hour. The electrodes do not pierce the skin, but are held in place by removable gel and tape.
When the person is ready to go to bed, the electrodes are linked to recording equipment. The technologist sits in a central control area, which is separate from the bedrooms. During the observation period, the person is attached to the following: