The happier you are, the less sleep you require to function in everyday life. Sadness increases the urge to sleep more.
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Psychology Facts
RandomPsychology is the scientific study of the mind and behavior. Psychology is a multifaceted discipline and includes many sub-fields of study such areas as human development, sports, health, clinical, social behavior and cognitive processes. - McLeod S...
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The happier you are, the less sleep you require to function in everyday life. Sadness increases the urge to sleep more.