Don't hold this against me, but I didn't gain weight until my forties. I was blessed with such a high metabolism I never gained.
Paying for it now, though. Sometime in my forties I started getting a pot belly and I can't even blame it on beer.
My heaviest was 240, and that scared me to death. I'm to 190, but I stil can lose some more.
It was freaky when pants you wore for 25 years didn't fit anymore. Middle age spread, they call it.
So when the decades start piling up, you might go through the same thing.