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flag Scientists used sound cues in REM sleep to help people solve puzzles in dreams, with 75% dreaming about the tasks and nearly half solving them—double the rate without cues.

flag Northwestern University researchers used sound cues during REM sleep to guide dreams toward unsolved puzzles, resulting in 75% of participants dreaming about the tasks and nearly half solving them upon waking—double the rate of those not cued. flag The technique, called targeted memory reactivation, worked even without conscious awareness, suggesting sleep can be leveraged to boost problem-solving and creativity. flag Findings, based on a small study of 20 people, were published in *Neuroscience of Consciousness*.

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