“I’m in my early 30s, and weigh the same as I did when I graduated from high school. I’ve NEVER given a thought to what I eat, and haven’t worked out the first time.”
As you point out later in your post, a lot of the credit can go to your ancestors, but you, sir, are a braggart :)
Same thing here. 34, weight the same as at 18, eat ravenously, never work out, though most assume I do. A lot of this stuff is genetic, not diet or exercise.