Sleep disorders are associated with impulsivity in school children aged 8 to 10 years.

Context: Sleep has an important function in the physical and emotional development of children. Some studies suggest an association between impulsivity and sleep disorders. However, little is known about this association in schoolchildren aged 8 to 10 years.

Sleep habits and starting time to school in Brazilian children.

Objective: This study investigated the sleep habits in Brazilian children according to age, gender and starting time to school.

Method: We investigated 2,482 scholars aged 7 to 10 years. We compared sleep habits, gender, and starting time to school (morning and afternoon).