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Fred W. Turek: Faculty Experts

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Fred W. Turek

Weinberg College of Arts and Sciences

Charles E. and Emma H. Morrison Professor of Neurobiology
Weinberg College of Arts and Sciences
Professor of Neurology and of Psychiatry and Behavioral Sciences
Feinberg School of Medicine
Director, Center for Sleep and Circadian Biology


Areas of Focus

  • Sleep and circadian rhythms
  • Genes that regulate sleep and circadian rhythms
  • Jet lag, shift workers, the elderly
  • Brain and behavior
  • Metabolic, neurodegenerative and gastrointestinal disorders


  • Genetics of the circadian clock system and the molecular genetic mechanisms underlying the sleep-wake cycle
  • Effects of advanced age on the expression of circadian clock genes
  • Links between sleep, circadian rhythms and energy metabolism
  • Role of melatonin in modulating sleep and circadian rhythms
  • Role of disrupted circadian rhythms on disease and disorders, including obesity, diabetes, cardiovascular disease, neurological and psychiatric disorders
  • Effects of stress, circadian dysregulation and sleep loss/fragmentation on the intestinal microbiota, including studies of twin NASA astronauts Mark and Scott Kelly as well as mice aboard the International Space Station