Youngsters who sleep longer may perform better in tests, study suggests

Even 15 minutes’ more sleep leads to differences in how well tasks are performed, according to researchers.

The study, published in Cell Reports, used data from the Adolescent Brain Cognitive Development (ABCD) Study, a long-term study looking at brain development and child health in the US.

Researchers from the University of Cambridge and Fudan University in Shanghai looked at 3,222 children aged between 11 and 12 who had been given FitBit devices to track their sleeping patterns.

Their results were checked against two groups of 13 to 14-year-olds, comprising 1,190 youngsters.

The children were divided into three categories based on average sleep times.

The first slept on average seven hours and 10 minutes, while the second group slept for seven hours and 21 minutes, and...
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