Leafy green veggies might cut dementia risk by 30%

A 24-year study of 2,800 adults found eating about one serving of leafy greens daily was linked to a 30% slower rate of cognitive decline and reduced dementia risk. Researchers saw the biggest impact in those with Alzheimer's-specific brain changes. This isn't a new concept, but the sheer length and size of the study make the data compelling.