Although scientists have known about autophagy for decades, it's only in the last decade or so it’s found its way into the spotlight as one of the body’s most important tools for staying youthful and resilient. Once just a phrase buried in biology textbooks, autophagy is now at the front and center of longevity research, turning heads for its potential to slow aging, boost vitality, and reshape how we think about long-term health. One way to think of autophagy is as your body’s built-in cleanse-and-repair system, quietly working behind the scenes to help you feel sharper, stronger, and better equipped to handle whatever life throws your way.