Journalist studies circadian rhythms by living in underground bunker for ten days

Lynne Peeples, a science journalist, spent ten days in a Cold War bunker to study circadian rhythms. She blocked out all light and time cues to see how it affected her sleep, mood, and health. Initially, Peeples felt aligned with a 24-hour cycle, but halfway through, she experienced severe disorientation, mood swings, and physical discomfort. She found her internal clock became misaligned, leading to feelings similar to jet lag. Her findings support existing research on the importance of sunlight and daily routines for maintaining a healthy circadian rhythm. Peeples emphasized the need for morning light exposure and a consistent schedule for overall well-being.