I take it back! I BELIEVE in the runner's high.
Partially because I was physically able to sprint to finish line.
Mostly, though, because when I ran into my research professor right after I finished, I REALLY wanted to hug him. Like the borderline inappropriate embrace sort of hug. I would have done it, too. He ended up saving us both from my endorphins by extending his hand for a shake. I took his hand and shook it! WOOOOH YAH!
But hey, at least I wasn't tackled for sexual harassment and can continue my reign as Queen of confocal microscopy.