I was wondering about this the other day and today I see an interesting article on MSN about it. If you are interested in reading the whole article, you can see it here.

Basically, it’s what has been mentioned here. Outside there is scenery, inside is tedious. Indoors is air conditioned, outdoors is not. I think that’s what keeps me going back to the treadmill. Running outside in Florida in the middle of the summer is not my idea of a good time. I think I’ll stick to the treadmill until mid fall when it cools down a tad.