Cori Lefkowith

Cori Lefkowith is the founder of Redefining Strength, an internationally recognized fitness education company known for its no-nonsense, sustainable approach to building strength for life.

With over a decade of coaching experience, Cori challenges the cycle of starting over by helping people stop chasing “the perfect plan” and start building the capacity to follow through. Her work cuts through fitness confusion and replaces all-or-nothing thinking with practical strategies that adapt to real life.

She is the creator of The STRONG System, a framework designed to help individuals build lasting habits, regain confidence in their bodies, and realize that they are the plan. Through Redefining Strength, her programs and educational content have reached millions worldwide and have been featured in Women’s Health, SELF, The Guardian, MindBodyGreen, Well+Good, and more.

Her message is clear: progress isn’t about doing more — it’s about doing what you can sustain, consistently.