Regular naps may help toddlers learn language better

Toddlers who regularly take naps may develop better language skills than those who do not take a nap, researchers say.

The findings showed that three-year-olds who napped within about an hour of learning a new verb performed better than those who stayed awake for at least five hours after learning, regardless of whether they were habitual nappers.


The learning benefit of napping could come from what is known as slow-wave sleep, the researchers said.

“There’s a lot of evidence that different phases of sleep contribute to memory consolidation, and one of the really important phases is slow-wave sleep, which is one of the deepest forms of sleep,” said Rebecca Gomez, Associate Professor at University of Arizona in the US.

“During this phase, what the brain is doing is replaying memories during sleep, so those brain rhythms that occur during slow-wave sleep and other phases of non-REM sleep are actually reactivating those patterns — those memories — and replaying them and strengthening them,” Gomez added, in the paper published in the journal Child Development.


If they do not get enough sleep it can have long-term consequences including deficits on cognitive tests, Gomez said.

For the study, the team tested 39 typically developing 3-year-olds, divided into two groups: habitual nappers and non-habitual nappers.

Parents may want to consider maintaining regular nap times for preschoolers, who are at an age at which naps have a tendency to dwindle, the researchers suggested.

source: IANS