Runner's High

Wikipedia defines Runner's High as a "publicized putative release of endorphins in response to strenuous, continuous workouts of moderate to high intensity, corresponding to prolonged physical stress.  The release of endorphins presumably mitigates pain sensation by negatively regulating pain-carrying signals from neurons in the spinal cord."

One of the many amusing definitions from Urban Dictionary is "A supposed 'high' attained by release of endorphins during and after high amounts of aerobic activity, possibly developed in the 1960's as a way to get the drug addicts of the class to exercise."

Here's my personal take, written of course while on a Runner's High :)

I feel your rush

You flood my brain

I'm so deliriously insane

I can't deny

Riding your high

Is when I feel the most alive

You take me to another place

Outside my mind

A sweet escape

The gain is proportional to pain

You start to wane
I start again

So choose your pleasure, choose your poison

Raise your cup and pour it in

Don't even wanna try to kick this addiction to endorphins