Gasoline used to be a common source of lead exposure in the US. Now, millions of people’s mental health may be feeling the impacts.

Decades of leaded gasoline exposure in the United States linked to mental health conditions such as depression, anxiety, ADHD and neurotic behavior.

Decades of lead exposure from car exhaust altered the mental health of millions of Americans, making them more prone to depression, anxiety and ADHD, a new study claims.

The fuel type was banned in 1996, but people exposed to it as children are particularly susceptible to depression, anxiety, ADHD and personality changes.