According to a new study, sleeping for at least 8 hours in a day can help improve memory, as reported by NDTV.

According to researchers, people were better at remembering faces and names when they got eight-hour sound sleep after seeing those faces and names for the first time. While a couple of studies have looked at how sleep might affect our ability to learn new faces and names, no previous studies have looked at the impact of a full night of sleep in between learning and being tested.

“We found that when participants were given the opportunity to have a full night’s sleep, their ability to correctly identify the name associated with a face – and their confidence in their answers – significantly improved,” explained Jeanne F Duffy, associate neuroscientist at Brigham and Women’s Hospital (BWH).

Participants in the study underwent testing in a controlled environment while staying at BWH’s centre for clinical investigation. They were shown 20 photos of faces with corresponding names from a database of over 600 colour photos of adult faces and asked to memorise them. After a 12-hour period, they were then shown the photos again with either a correct or incorrect name.

In addition to answering whether or not the correct name was shown, participants were asked to rate their confidence on a scale of one to nine. When given an opportunity to sleep for up to eight hours, participants correctly matched 12 percent more of the faces and names.

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