The myth that running causes osteoarthritis and ruins your knees has long been debunked. But what if your joints are already ruined? Before we get to the new stuff, let’s just make sure we’re on the same page with regard to the old “running will ruin your knees”...

Participants in the Danish GLAD study. Author providedIf Your Knees Hurt, Keep Exercising!If you take up exercise later in life, as a treatment for joint or hip pain, you should expect a small, temporary increase in pain. But if you proceed sensibly, you will be...