A new study in the August issue of The Journal of Pediatrics suggests that exposure to tobacco smoke
may also impair motor development in children. Children aged 7-9 had urine
cotinine levels measured as a marker for exposure to second-hand smoke. Findings
were adjusted to account for other factors known to affect motor development. The
children with cotinine in their urine were more likely to have impairment in a
variety of motor abilities including coordination, balance, and strength when
compared to children who did not have cotinine in their urine.
A second study in the same issue of J Peds found similar impairments in motor development if children
were exposed to tobacco prenatally through maternal smoking during pregnancy.
When we think of tobacco smoke, we usually think about its effects on the
respiratory system but it is clear that it also has effects on a child’s
developing nervous system.
We would hope that no children would be exposed to
second-hand smoke but we also recognize that it is very difficult for parents
and family members to stop smoking. Keeping smoke as far away from children as
possible is good but we also know that children whose family members smoke
outside, away from them, will also get some exposure. Ultimately, stopping
smoking is best for the smoker and everyone around him. It is possible to stop and
I have had the opportunity to celebrate along with the parents of some of my
patients when they have been able to quit.
For those who are interested in stopping, I would encourage
you to talk with your own physician about options which may make it easier, for
your own health and the health of those around you.
