Comment by kyllo

Yeah, I used to only jog (2-6 miles at a time) for exercise, but I had lots of knee problems. Then I picked up Brazilian Jiu-Jitsu and that also kept me in good shape but gave me different knee problems, until I started lifting. Lifting is clearly good for the knees and back. The myths that squats will hurt your knees and deadlifts will hurt your back need to be dispelled.