July 23, 2009 --
There is some science confirming what parents have long believed: running around during the day helps children fall asleep faster at night. Researchers found that children with the highest levels of activity during the day are out more quickly at night. And the study even provides a figure: for every hour they sit, children need three minutes longer to nod off.
Interestingly, it did not matter what the child did while they sat. TV was no more detrimental than quiet reading.
The study in the Archives of Disease in Childhood points to the importance of activity, not only for physical fitness, but for healthy sleep as well.