Outdoor running on a not overly improved trail is real running. Running on a treadmill is a boring waste of time. Running on the cement or tarmac bike trail around the park is almost as bad.
Run on the turf at least! Or pick a steep enough grade that you don't even NEED to run up because just walking up it will make you pant!! Hiking a mountain is real world fitness... and it's pretty... and it's relaxing...
Running on a treadmill is boring torture. Get outside and get some Vitamin D and a life!
Ben Fury, CFT, CMT
“People who do not eat butterflies will wear their clothes the wrong way, and people who wear their clothes the wrong way are inviting lemmings inside.”
~Muzhduk the Ugli the Third~