Syracuse (WSYR-TV) - If your children are behaving badly, a study suggests their bedtime could be to blame.
Researchers in the United Kingdom studied the sleep habits of more than 10,000 children at various ages.
They found that children who didn't have a regular bedtime or went to bed later than 9 p.m. were more likely to have behavioral issues.
Researchers say these children were also more likely to have other unhelpful routines, such as skipping breakfast and watching more than 3 hours of TV a day.
So, to test whether sleep habits were to blame, the researchers asked parents to change them to a regular bedtime.
The children - now going to sleep earlier - had reported improvements in behavior, both at home and school.