Having trouble staying awake in the evenings, but are up and ready to start the day before dawn? You might be a one in 300 extreme early riser. — Photos.com
New American research has found that as many as one in 300 of us may have a natural preference for going to bed extremely early, and waking up fresh and revitalised in the small hours of the morning.
Led by University of California, San Francisco, along with the University of Utah and University of Wisconsin-Madison, the new study looked at 2,422 patients attending a sleep disorder clinic over a nine-year period to investigate the prevalence of advanced sleep phase.
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