Every time I read an article like this, I get a bad feeling and I say to myself "I'll definitely exercise more - I don't wanna be all buggy when I get older due to my lifestyle - I'll do this NOW!". Then a couple of hours later, I'm back coding happily seated. I'm sure this is the case for many of us. I wish our brains could keep this bad, guilty-like feeling that makes us take action around for longer.
In my experience, if you can just get over that hump to a point where you start to look good, or get strong, or feel good, it becomes an activity, not a chore. Your body is incredible and it's a shame to not see a glimpse of its potential.
This simple concept was very helpful to me, and I hope to others as well.