Why do people take drugs? Because drugs stimulate endorphin production in the brain -- they just have those devastating side effects!

Pedaling is the only drug in the world that's good for you. It's:

fun
progressive (gets things accomplished)
healthy
fitness-enhancing
fun
economical
addictive
fun

Sure, it's 'green'; it was green a century ago, when nobody knew anything about 'green'.
It's outside-the-norm thinking and practice. But then, anything that requires this level of personal involvement and commitment will be outside the norm for this slothful, leisure- and pleasure-loving society.

I experienced 'runner's high' ONE TIME, while stationed in Germany; now, I get 'pedaler's high' about 4 times a week!