Does your child enjoy a bit of roughhousing? Great! Some researchers
in early brain development believe that this sort of play helps
develop the part of the brain (the frontal lobe) that regulates
behavior. So instead of worrying that this type of activity will
encourage your child to act out or become too aggressive, be assured
that within a monitored situation, rough-house play can actually help
your child learn the self-regulation skills needed to know how and
when this type of play is appropriate. http://www.playsafekids.com.au/