Ryan Reynolds has been an observer of the New York City Marathon in past years, and says he was amazed by the "guys coming in to finish with bleeding nipples ... People were crying. People were limping, hobbling, screaming, crawling. But most importantly, people were experiencing a sublime rapture that I couldn't even hope to understand."

Add to that statement the fact that Reynolds, who has described his early morning runs as "nothing short of horrifying," has chosen to run the marathon after speaking with Michael J. Fox in an effort to raise money for Parkinson's Disease, which his father has battled for the last 15 years, and whoa -- he's starting to sound awfully serious. Did his recent marriage to Scarlett Johansson rid him of his funny bone? Nope, not at all. The funnyman wrote the following:

"Not since the discovery of Junior High School has a torture been so effective. It's my hope the story of my father combined with my own goal of becoming the first person in history to sob uncontrollably for 26.2 miles straight, may inspire you to give something, too. ... [C]ome on down and watch. Feel free to bring a smile, automated defibrillator, or a fresh set of nipples."