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flag A new AI-powered sleep tool on Samsung’s Galaxy Watch 8 personalizes bedtimes using biological data, improving alertness and mood by aligning sleep with natural rhythms.

flag A new sleep tool developed by Kim at KAIST uses a mathematical model combining sleep pressure and circadian rhythm to recommend personalized bedtimes based on wearable device data. flag By analyzing real-time biological signals, the algorithm helps align sleep with the body’s natural cycles, improving daytime alertness and mood—especially when users follow the recommendations consistently. flag AI reduced the calibration period from seven to three days, making it practical for daily use. flag Now available on Samsung’s Galaxy Watch 8, the tool supports better sleep alignment with biological rhythms, backed by experts who emphasize the benefits of regular sleep timing for overall health.

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