Wildfire Smoke Caused 17,000 Strokes in One Year, Study Says

A new study reveals a startling link between wildfire smoke and strokes in older Americans. Researchers estimate it caused roughly 17,000 strokes in just one year. The research focused on U.S. adults over 65. It found that long-term exposure to tiny particles from wildfire smoke significantly increases stroke risk. This risk is higher than from other common sources of air pollution, like urban traffic or industry. Wildfire smoke contains fine particulate matter, known as PM2.5. These particles are so small they can enter the lungs and bloodstream. The study used Medicare data and smoke exposure maps from 2007 to 2018. It connected increased smoke exposure to more strokes in the following year. Scientists say the findings highlight a growing public health threat. As wildfires become larger and more frequent, more people are exposed to this dangerous smoke. The study was published in the journal *Science Advances*.