Migraine-related hospital visits spike during periods of wildfire smoke, Canadian study finds

https://i.cbc.ca/ais/b3006b28-8344-471e-9f3e-0f319d1906af,1783533966688/full/max/0/default.jpg?im=Crop%2Crect%3D%280%2C147%2C960%2C540%29%3BResize%3D%28620%29" title="Thick wildfire smoke from other parts of the province settled in Kamloops, B.C., on Tuesday afternoon (July 7, 2026), resulting in glowing orange skies." width="620" />

New Health Canada research found a six per cent increase in headache-related hospital trips linked to particulate matter from wildfires, suggesting periods of smoke-filled air may precede severe headache episodes that require emergency care.