Link between early lead exposure, mental health

Prenatal or early life exposure to lead could impact the risk of mental health issues later in life.

In a cohort study published in JAMA Psychiatry, researchers analyzed health status survey responses as well as deciduous-tooth samples for prenatal (second and third trimesters until birth) or early postnatal (birth until 6 months) lead exposure among a group of more than 700 adults who had donated baby teeth samples in childhood.

The researchers found that a higher concentration of lead was correlated with an increased risk of major depressive disorder and anxiety symptoms in later adulthood. Exposure during the third trimester was associated with the highest risks of depression.

The researchers hope their findings can encourage the use of targeted interventions and mental health screenings to address the long-term effects of lead exposure.

Read more: JAMA Psychiatry

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