Late 30s represent, yo. The author of the article mentions high stress. My experience differs. In my case the stress sort of waned by itself. I think I moved a bit towards Wally character from the Dilbert series. I don't overcommit anymore and I certainly gained resistance to "aggressive schedules" and visions of doom and gloom tied to deadline skips. So I stress out less and less and I believe it comes naturally wit…
I think the crux of the matter is your job security and your financial stability (the economy where you live, etc). If you can afford to delay projects as needed without risking your position then of course that takes a lot of pressure off you and things are more enjoyable. In an ideal world, I'd be set financially by the time I'm 50 and I would work in my own stuff exclusively or almost exclusively.
You nailed it. +1 :)
My own comment further down below was exactly on similar lines.