Orchid XP v8 wrote:
>>>>> - 0-maintenance on all components. (!)
>>>> Just a couple of words: hairdressers, toothpaste, the gym.
>>>
>>> Non-essential cosmetics. ;-)
>> gym <-> cosmetics ?
> 
> Going to the gym isn't necessary. 
I meant it as an example of exercise.

> [E.g., I've never been to one in my entire life.]

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.

>>>>> - Most non-fatal injuries automatically repaired while unit remains 
>>>>> operational. (!!!)
>>>> The two major mission critical systems (the heart and brain) can not 
>>>> repair damage.
>>>
>>> I was under the impression that your heart *can* recover from damage. 
>> No, if you loose a heart muscle cell e.g. because of an infarct it is 
>> lost and won't be replaced by another muscle cell but by fibrous 
>> tissue or fat. Though some reports exist that might indicate that 
>> sometimes cells are replaced, but never enough to make the piece of 
>> tissue contract again.
> 
> Interesting. I didn't know what.
> 
> Does anybody know *why* normal muscle can rebuild itself, but the heart 
> can't?
> 
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.

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