Dr. Rhonda Patrick on Instagram: "Nearly 1 in 4 young adults now has high blood pressure. That’s deeply concerning. Hypertension isn’t just a risk factor for cardiovascular disease—it also increases the risk of cognitive decline, including dementia and Alzheimer’s disease. The earlier high blood pressure develops, the greater the long-term risk. Cumulative exposure matters. Chronically elevated blood pressure impairs cerebral blood flow and nutrient delivery to neurons, accelerating brain atroph