So sad. And so obviously true. Read the article, then comment on why YOU continue to exercise with intensity. Answer the question about what is motivating you; where is your pleasure response to exercise achieved?
http://well.blogs.nytimes.com/2012/11/19/updating-the-message-to-get-americans-moving/
“ Talent hits a target no one else can hit; Genius hits a target no one else can see. ” – Arthur Schopenhauer
Fitnessgroan's Blog 
I think the scariest part of the article is where it says that out-of-shape people can reach the point of being out of breath by walking a few steps. If that’s true, then the number of people who are getting “intense” exercise is really very few.
As for me, if I don’t exercise at an intense level every few days, I feel sluggish. I think too many people associate “intense” with “pain”. I would like to see the relationship between pain and intensity explored, but I think there are some places where overlap is appropriate, but many other places where one does not mean the other.
T
My wife’s best friends mother falls into that scary realm. She’s morbidly obese and starts breathing hard as soon as she stands up from a chair.