When children’s socioeconomic background was considered, Black and White children’s performance on cognitive tests was similar when they slept well, the study found. But when sleep was disrupted, Black children’s performance was worse.
Children from all socioeconomic backgrounds performed equally on tests when they slept well and had consistent sleep schedules. But when their sleep was disrupted, children from higher-income homes did better than children from lower-income homes.
The study does not address why Black children and all children from lower-income homes may be more vulnerable to the effects of sleep disruption.
— By Diverse staff
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