Wildfire Smoke Linked to Mental Health Struggles, New Study Shows
A new study from Harvard T.H. Chan School of Public Health reveals that wildfire smoke affects mental health beyond its known respiratory risks. Researchers report a clear link between exposure to fine particulate matter (PM2.5) from wildfires and more emergency department visits for mental health conditions. The finding arrives as wildfires become more frequent and severe worldwide, highlighting a complex public health challenge.
Published in JAMA Network Open, the study breaks new ground by examining short-term mental health effects of wildfire-specific PM2.5. While past research has focused on lungs and heart, this work shows that mood disorders, anxiety, and depression can worsen with wildfire smoke exposure. Lead author Kari Nadeau, a Harvard professor, notes that smoke itself contributes to mental health struggles, beyond the trauma of fires.