Dori Zook wrote:
 > One thing that pops to mind is thin, 'fit' people who suffer heart attacks
 > or wind up undergoing triple-bypass anyway.   ...

I've been at the Koerperwelten exhibition recently
( http://www.koerperwelten.com/skip.htm ).
You can see how beautiful a human body is composed.
Great visit.

They have aortas (heart artery) there too.
Normal ones and such ones with arteriosclerosis and enlargements and
bypasses too. These look really awful. This sticky stuff inside the
arteries... looks really spoiled.
Just body wight isn't the only health concern.
There are nutritionous damages which leave people thin but deadly sick.

Amadeus