Normally, the immune system would only react if a harmful substance, such as bacteria, attacks the body. For people with allergies, their immune systems are working too hard and react even when relatively harmless substances, such as pollen, are present.
TUESDAY, July 1, 2025 (HealthDay News) —Exposure to wildfire smoke might make some people more likely to fall ill by altering their immune systems, a new study says.
Fire smoke appears to affect the immune system on a cellular level, researchers report in the journal Nature Medicine.
