Tag: Charles A. Czeisler

  • Health

    Chronic sleep loss degrades nighttime performance

    Although the exact function of sleep remains unknown, sleep is clearly necessary for optimal cognitive performance, learning, and memory.

    3–4 minutes
  • Campus & Community

    Doctor fatigue hurting patients

    Too many 24-hour shifts worked by hospital interns cause medical mistakes that harm and may even kill patients, according to a new Harvard Medical School study. Doctors in training who…

    1–2 minutes
  • Health

    Melatonin most effective for sleep when taken for off-hour sleeping

    Researchers from the Divisions of Sleep Medicine at Brigham and Women’s Hospital and Harvard Medical School have found in a double-blind placebo-controlled clinical study that melatonin, taken orally during non-typical…

    1–2 minutes
  • Science & Tech

    Interns crash more after long shifts

    A safety group at Harvard University has looked into the behavior of those in training in hospitals and found that overworked interns made 36 percent more serious medical errors and…

    1–2 minutes
  • Science & Tech

    Blue light special

    Jet-setters and shift workers now sit in front of glaring white lights to readjust their body rhythms and avoid sleep and alertness problems. New experiments condcuted by Harvard University researchers…

    1–2 minutes
  • Health

    Are you an ‘early bird’ or a ‘night owl’?

    Harvard researchers working at Brigham and Women’s Hospital have found that whether someone is a morning person or an evening person depends on a basic aspect of the circadian timing…

    1–2 minutes