Elevated levels of lead in the blood during early childhood is being linked to various forms of dementia 50 years later. A new University of Toronto study is associating the use of leaded gasoline as a legacy not yet fully understood.

“The bottom line is the brain doesn't like toxins,” said Dr. Douglas Scharre, a clinical researcher regarding diagnosis and management of cognitive issues at The Ohio State University Wexner Medical Center. “Fifty years later, the lead may have already caused the damage.”

Did you live in a high-traffic area from the 1960s to the 1980s? Spend a lot of time on gun ranges? Race tracks? Reside in a home with flaking lead paint? Work at an air force base?

“One of the major public health victories was getting rid of lead in gasolines and in paint,” said Kelly Ba

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