Charles A. Czeisler

[Synthesized from ORCID profile metadata] Research keywords: sleep, sleep deprivation, circadian rhythms, circadian rhythm sleep disorders, circadian clocks, occupational safety, mental health, Reaction Time, neurobehavioral performance, melatonin, human growth hormone, prolactin, thyroid stimulating hormone, cortisol, body temperature, body temperature regulation, COVID-19, work hours, patient safety, sleep health