Public policies are needed to improve brain health, researchers urge in commentary

An estimated 3.4 billion people—43% of the world population—had a condition affecting the nervous system in 2021, leading to 11.1 million deaths. Increasing numbers of people affected by stroke, dementia and late-life depression—the three major disorders of the aging brain—foreshadow a “gray tsunami” that requires a new national commitment to address brain health, according to a new commentary published this week in Circulation.