[Joof]

Running is hard.

[murt]

And thus the treadmill was born - running became slightly easier.

[Joof]

My personal opinion is that the treadmill makes it so much harder!

[m463]

Actually, by altering the tilt you can do the same amount of exercise without switching from walking to a run

[Joof]

I do trail running, sooooo... It depends and it doesn't make the running less boring.