Multiple Canadian outlets explain that wildfire smoke can affect health beyond the lungs and heart, with potential impacts on the brain in both the near and long term. They note that smoke contains fine particulate matter and other pollutants that can enter the body through breathing and may contribute to inflammation and other biological stressors that can affect the brain. The articles describe risks that may include changes to cognitive functioning and effects on conditions related to the brain, emphasizing that exposure during active wildfire events and persistent smoky conditions can be especially concerning. They also point to the possibility of longer-term consequences, suggesting that repeated or sustained exposure over time may influence neurological health. Across the sources, the key message is that wildfire smoke is not only a respiratory hazard; it can also pose risks to brain function and overall health. The articles encourage attention to exposure levels and appropriate protective steps when smoke is present.