Preschoolers with lots of brothers and sisters seem to develop language skills a bit slower than other kids -- possibly because they get less attention from mom and dad. But a new study suggests that ...

Birth order has long been linked to differences in cognition, with firstborn children often outperforming their later-born ...

When parents catch behavioral issues in their younger children such as aggression, defiance, rule-breaking, or difficulty controlling impulses, the first instinct may be to adjust their parenting ...