A deceptively simple leg brace is changing the lives of hundreds of wounded service members. Soldiers with badly injured legs who thought they'd have to live with terrible pain can walk and run again, ...

Stacey Kozel is a 41-year-old hiker who is currently working her way through the Appalachian Trail. It's a grueling slog—only 1 in 4 hikers will actually complete this hike. Kozel is averaging 20 ...