Veasey Conway/Harvard Staff Photographer Health ‘Hopeful message’ on brain disease Researcher Sanjula Singh has looked at stroke, dementia, late-life depression for years, finds lifestyle changes make big difference Jacob Sweet Harvard Staff Writer August 11, 2025 7 min read Part of the Profiles of Progress series Sanjula Singh wants people to know that stroke, dementia, and depression are much more preventable than they might think. “The most common misconception that a lot of people h...