By Dr. Sanchari Sinha Dutta, Ph.D. Reviewed by Lauren Hardaker Jul 11 2025 New research explores whether everyday insecticide use could be silently impairing memory and thinking ability in older adults, and why it might be more common than you think. Study:  Association between insecticide exposomics and cognitive function in older adults: an observational study based on NHANES 2011–2014 . Image credit: Oleksii Synelnykov/Shutterstock.com An observational study based on the 2011-2014 National