Sleep - Glossary

Written by Dr. Anitha Paderla, MBBS | Medically Reviewed by dr. reeja tharu, M.Phil.,Ph.D on Oct 19, 2016
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Glossary

Biological clock: An internal clock located in the brain that is regulated by light rays and controls certain functions like sleep .

Insomnia: Lack of sleep

Melatonin: A brain hormone secreted in darkness which induces sleep.

Caffeine: A substance present in coffee and cocoa products, which is a stimulant and hence suppresses sleep

Polysomnogram: An overnight sleep study in which various stages of sleep and the related events are studied.

CPAP: Continuous positive airway pressure, in which a steady stream of air keeps the breathing passage functioning.

Behavioral therapy: A therapy focused on removing the unpleasant phobias related to sleep and to help people adopt good sleep hygiene.

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