Age Fit MD

Aging fit is the ultimate luxury.

Aging doesn’t mean slowing down.

At Age Fit, we believe growing older should come with more wisdom, strength, and energy, not less. Founded by Dr. Karl Zarse, a board-certified physician with over 20 years of experience in chronic pain and healthy aging, Age Fit is a results-driven education and lifestyle platform that empowers adults over 45 to live stronger, smarter, and longer.

We cut through the noise. No fads. No gimmicks. Just science-backed, proven strategies that work.