News from the week of December 4: 1. Salty immune cells surrounding the brain linked to hypertension-induced dementia https://go.nih.gov/Li8jGzV 2. Decades after blood pressure-related pregnancy complications, Hispanic/Latina women can have changes in heart structure and function https://go.nih.gov/ci0E11J 3. Surgery beneficial for some children with mild sleep-disordered breathing https://go.nih.gov/Oe8I3mx