The saying in the physical fitness industry, "No pain; no gain." That's wrong.

I took a course of aerobic dance with an orthopedic nurse for a while, and she used to bounce around the studio shouting, "If it hurts, quit!" I think she had the more intelligent approach.

Now the physical fitness industry seems to prefer to tell victims to "work through the pain." I guess it sounds like Zen and sells better.

(I don't mean that EVERYBODY that goes to the gym is a victim. But if you are getting injured and they still push you, then you are.)