Charles A. Czeisler
Charles A. Czeisler is a physician and sleep and circadian researcher who directs the Division of Sleep Medicine at Harvard Medical School. His landmark work established how light resets the human circadian pacemaker and shaped modern sleep and occupational-health medicine.
Other materials
- Evening use of light-emitting eReaders negatively affects sleep, circadian timing, and next-morning alertness (research)
- High dose melatonin increases sleep duration during nighttime and daytime sleep episodes in older adults (research)
- Recommendations for daytime, evening, and nighttime indoor light exposure to best support physiology, sleep, and wakefulness in healthy adults (research)
- Sleep and circadian rhythms in humans (research)
- Stability, precision, and near-24-hour period of the human circadian pacemaker (research)