For most of human history, moving wasn’t a choice — it was survival. Hunting, gathering, farming, and walking long distances kept our bodies in constant motion. But over the past century, daily movement has quietly disappeared from much of our lives. Desk jobs, cars, and screen time have replaced the natural rhythm of physical activity, and our hearts are feeling the consequences. To continue reading this article, you must log in . Subscribe to Harvard Health Online Plus (HHO+) to unlock expert-