John W. wrote:

>  Want to
> lose weight? Exercise. 

I had thought so for a long time, but there seems to be something more 
than that.  There are some people who are not able to reduce their 
weight no matter how much exercise they do.


> On the most basic level it's about calories in
> and calories burned. Good eating habits are essential, but IMHO the
> first thing most people need to do is learn how to exercise; we
> Americans are too sedentary (sp). Take the steps, park further away
> from the door... tons of things people can do everyday to become more
> active. Then work on diet.


What if their metabolism is messed up and can not burn calories 
properly?  Hypothyrodism, Cushing's syndrome, diabetes mellitus, Graves' 
disease, what do those diseases have in common?  It's obesity, and they 
are all endocrine diseases.  Oh, wait, I should add acromegaly too -- a 
disease from too much growth hormone secreted after puberty.