In article <14773 at pitt.UUCP>, geb at dsl.pitt.edu (gordon e. banks) writes:
> In article <PMETZGER.92May21115525 at snark.shearson.com> pmetzger at shearson.com w
>>>>>What strikes me as being the most interesting question is this: is
>>there any limit to how long human minds can last? Given that
>>truly healthy hundred year olds often show no signs of any mental
>>incapacity, I would guess that at the very least the human mind could
>>last unmodified for a lot longer than simply a century and a half, but
>>unfortunately, we have no data to go on yet.
>> The cognitive changes that occur with aging are well documented,
> occur in almost everyone, start quite early, and rarely does anyone
> reach 100 without being quite "absent minded".
> However, are such changes due to brain cell loss, or psychological
changes? I'd suspect the former.