By Hannah Devlin
Never go to bed angry, the old saying goes, or bad feeling will harden into resentment. Now scientists have found evidence to support the idea that negative emotional memories are harder to reverse after a night’s sleep.
The study, published in the journal Nature Communications, suggests that during sleep, the brain reorganises the way negative memories are stored, making these associations harder to suppress in the future.
“In our opinion, yes, there is certain merit in this age-old advice,” said Yunzhe Liu, who led the research at Beijing Normal University and is now based at University College London. “We would suggest to first resolve argument before going to bed; don’t sleep on your anger.”
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