What Doctors Don't Tell You* One reason for the increased incidence of ADHD may be environmental. Lead, mercury and polychlorinated biphenyls (PCBs) - all common pollutants - are toxic to children at levels that are insignificant to adults.
* One reason for the increased incidence of ADHD may be environmental. Lead, mercury and polychlorinated biphenyls (PCBs) - all common pollutants - are toxic to children at levels that are insignificant to adults.
