andrel wrote:

> The fact that you don't do maintenance on your muscles and skeleton does 
> not imply that it is not necessary. Some people don't maintain their 
> cars and in general those cars don't live as long and healthy as other 
> cars.

...or again, one could argue that humans are designed for a mode of 
living which happens to involve lots of moving around. The fact that 
people need to go to the gym at all is just an artifact of our modern 
lifestyle rather than a design flaw in our body plan.

> Skeletal muscle can also grow by increasing the size of the muscle cells 
> (as can the heart cells). I should know if skeletal muscle cells can 
> still divide in adults or not, but I don't. GIMF, but I don't feel like 
> meeting a friend now, perhaps later.

I was under the impression that you can basically grow (or catabolise) 
arbitrary amounts of muscle fiber as conditions necessitate...

-- 
http://blog.orphi.me.uk/
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