Michel Siffre, 85, Dies; Descended Into Caves to Study the Human MindMichel Siffre's 63-day cave experiment significantly advanced the study of circadian rhythms, demonstrating the human internal clock operates independent of external time cues.
People Hate Daylight Saving. Science Tells Us Why.The study found higher fatal motor-vehicle accidents rates in areas where the sun sets an hour later, affecting people's sleep patterns.Research in chronobiology highlights the impact of daylight and darkness cycles on human behavior and safety.