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.
MONDAY, June 23, 2025 (HealthDay News) — The National Institutes of Health (NIH) will fund studies of the long-term health effects of a 2023 Ohio train derailment that released more than 1 million pounds of hazardous chemicals into the soil, air and water.
