New research identifies an association between glyphosate exposure in mice and symptoms of neuroinflammation, as well as accelerated Alzheimer’s disease-like pathology. This study tracks both the presence and impact of glyphosate’s byproducts in the brain long after exposure ends, showing an array of persistent, damaging effects on brain health. The findings suggest the brain may be much more susceptible to the damaging effects of the herbicide than previously thought. Glyphosate is one of the most pervasive herbicides used in the U.S. and worldwide.