Is an hour of discomfort worth it?

What would you rather be doing? When I enter the gym or go out on a run I'm happy to be there. It's a break from my mini-me ISA, it's a chance to listen to old tunes, it's a chance to make showering on a daily basis a priority that can't be ignored for just one more day. I appreciate the benefits of putting myself in an uncomfortable situation. Sure I'd rather be eating ice cream and lounging on the couch but well that got me where I don't want to be. I have to ask myself: which condition is more uncomfortable, running too many miles or gaining weight year after year for the rest of my life? One hour of physical discomfort is worth a longer, fuller life, I mean come on I already admitted that one hour of discomfort is worth showering. 

How can one hour at the gym equal a fuller, longer life? Even if it's an hour of the most relaxing yoga ever, that one hour leads to a lifestyle, a healthy lifestyle. A person who takes the time to do something physically fit for his or her body usually doesn't hit up Jack and the Box on the way home (this excludes Amber Cano, she actual is one of those freaks, love ya but it's weird). So if hitting the gym, trial, heavy bag, or perfect frog pose leads to a green salad instead of a slice of pizza, that one hour of activity lengthened your life one hour at a time.