Charles A. Czeisler

Charles A. Czeisler is a prominent sleep researcher and chronobiologist who studies how our biological clocks regulate sleep, wakefulness, and overall health. His work helps us understand the importance of aligning daily activities with natural circadian rhythms, which are internal processes that follow roughly a 24-hour cycle. Czeisler’s research has important implications for optimizing sleep, managing shift work, and improving health outcomes related to sleep disorders. He is a professor at Harvard Medical School and has contributed significantly to our understanding of how light, sleep patterns, and timing influence well-being and performance.