So I have to ask... do you gals run DOWN? Or just up the stairs.

Even walking down, my knees can ache sometimes. And I have heard or read somewhere that going up the stairs is great, but avoid going down because it is bad for your knees.

However, I am thinking I ned to rise to the challenge of this thread...

I work on the second floor of a three story building and always use the stairs unless I have a trolley load of stuff for class.

But I think in my breaks when I go for walk around campus I might start "doing stairs" instead - espesh with winter immminent. If I start on the bottom, set the elevator to go to the third floor and then run up, I can get the elevator back down again and repeat and when I have had enough, I'll just stop my run up on the second floor...