Pyrethroid pesticides (PYRs) are synthetic insecticides widely used in crops and consumer products, such as residential insecticides, pet sprays and shampoos, lice treatments, and mosquito repellents. A 2025 study published in Ecotoxicology and Environmental Safety reported on the relationship between exposure to PYRs and neurodevelopment between the ages of 1 and 2. The final analysis included 305 children from a rural area in China participating in a prospective birth cohort study who under...| blog.bioticsresearch.com