As a sports medicine physician, my goal is to keep my patients moving and active. Every day in my office, I see people coming in with achy knees, from 8-year-old gymnasts to 82-year-old marathon ...

An energy-harvesting gadget designed to strap to a person's knee and charge from a walking motion is being hailed as a potential solution to ridding the world of batteries. The next-generation device ...

Everyday Health independently vets all recommended products. If you purchase a featured product, we may be compensated. Learn why you can trust us. ON THIS PAGE Whether you’re recovering from a knee ...