More than 80 percent of the country’s public middle and high schools start too early, according to a report out last week from the Centers for Disease Control. Nevada's schools rank better than the average, with about half starting at 8:30 am, but that still leaves 130,000 of the state's teens chronically sleep deprived.
Research indicates that while younger children learn best early in the day, teens perform better if they start school later in the morning.