What Are the Common Toxic Substances Linked to Developmental Delays?
Several toxic substances have been identified as risk factors for developmental delays. Lead is one of the most well-known toxins, historically linked to cognitive impairments and reduced IQ in children. Mercury, particularly methylmercury found in contaminated fish, is another neurotoxin that can impact brain development. Polychlorinated biphenyls (PCBs), which have been banned but persist in the environment, are also associated with deficits in motor and cognitive functions.
