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Can't solve a puzzle? Sleep on it, a new study suggests

NPR | By Regina G. Barber,

Rachel Carlson

Published February 5, 2026 at 4:41 PM EST

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NPR's Short Wave talks about babies' perceptions of rhythm, how sleep may help us solve puzzles and why snakes may be able to fast so long.

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Regina G. Barber

Regina G. Barber is Short Wave's Scientist in Residence. She contributes original reporting on STEM and guest hosts the show.

Rachel Carlson

Rachel Carlson (she/her) is a production assistant at Short Wave, NPR's science podcast. She gets to do a bit of everything: researching, sourcing, writing, fact-checking and cutting episodes.