Running is fine when done in moderation.
Why, I ran just today. I want to work on my speed so I ran intervals at the track.
I run, but when I get around more sedentary family members, they like to point out how unhealthy it is. They say this while ingesting fish oil pills, blood pressure meds, diabetes meds, cholesterol meds, and snake oil for their ailing joints.
My daughter has taken up running, and a friend's mom said she doesn't run because runners always have a grimace on their faces. My daughter replied that is the same facial expression that non-runners have from going up one flight of stairs.
-- Random Error Generator, Version 4.0
-- Master Moonballer