Skinny People that become FAT ???

Hi. I was just wondering. Why do skinny ppl. ..ppl who don't necessarly exercise but were really skinny in their early 20s or teens become fat when they get older??
ALSO ...my question is:
Are there any fat ppl who have been fat for some of their adult lives (early 20s let's say) and then just become skinny for no reason .with no dietary or lifestyle changes at all --WITHOUT THE DEVELOPMENT of a DISEASE like Grave's disease, etc.

speaking from experience it's easy to put on weight for a variety of conditions ranging from migraines and sinus problems to hormonal issues, who can work out when your head is pounding and exercise makes it worse and you will eat anything to try and feel better. Plus your metabolism slows as you age. As to the other, the theories are that as you get older your sense of smell and taste diminish, therefore you don't have the stimulation to eat as you would when you were younger. You eat to survive not because the roast or pie smells good in the oven. Happened to my mother and grandmother.

Well adults who were skinny and got fat are usulay caused by CHILDREN. And people who randomly loose a bunch of weight, either just lost baby fat or was a mirical, either way, more to them

as you grow older your metabolism slows....
and the next question they just starve themselfs

I think it because of your metabolism. The older we get the slower it becomes. Can cause unexplained weight to be added on to you life style or to cause you not to eat as much.

because they get their fat vacuumed out all their lives, and run out of money or can't any longer find anyone practicing Medicine without a license.

Reality Check Time!!
who told anyone that our metabolism naturally slows down?That's just an excuse for middle age obesity,sorry.
You hit it on the nose,they don't exercise,and put in more calories than they burn.
People who lose weight without cause are often either stressed,or have a hidden medical condition,been there,done that :)

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