I have no idea, I can only imagine. Skinny all my life, competitive runner since I was 12, I've never once put on a pair of skimpy shorts and a singlet, and headed out the door for a run worried about my body image. But let me tell you a story...

Buddy of mine on Xbox, played with him for years when we mutually worked at MSFT, but never "met" him. I remember he once mentioned that he weighed 400lbs. Well, one night we're playing Halo as we do on Friday nights, and he's cutting out early. "I've got a 5K to run tomorrow." Wait a minute, what? Hey, $GAMER_TAG, am I remembering right that you weigh about 400lbs.? "Used to. Doctor said to lose weight, so I started running. Lost 175lbs. so far, still have XX to go."

I had to mute my microphone because I cried. I was so proud of this person I'd never met in person, but knew for years. No, I don't know what it's like to be 400lbs. But I can imagine. I can imagine what it's like to walk around with another me riding piggyback. And I can imagine the mental hurdles to overcome, the body image issues, and the other barriers that make it easy to just sit back down on the couch and say, "who am I kidding?". Instead, this person said one day, "today, I am a runner" and went out and did it. And then did it again, and again until the weight started to come off.

Why, so I can expose my gross body to the world?

Fuck 'em. Tell 'em this sub-3:00 marathoner said it's okay, and they can just look the other way if it bothers them. And if you see a skinny guy with a brindle pit bull dog running by you, don't worry about what he's thinking about you, because he's silently cheering you on.