james at teoth.fsnet.co.uk (James Teo) wrote in
<3a97cb8d.1337641 at news.freeserve.net>:
>Sleep requires the loss of consciousness, but is very distinct from
>simply knocking your head on the wall and passing out. Sleep is an
>active process by which your brain makes itself turn off consciousness
>and turn on whatever weird thing it does. EEG changes in sleep also
>change in well-described sleep with distinct stages.
>>I don't know of any disease which causes one to lose the ability to
>sleep, so I can't say. Run-of-the-mill insomnia isn't that since it's
>just a out-of-sync biological clock.
What if someone sustained damage to the suprachiasmatic nucleus, which I have
been told controls circadian rhythm in the brain? Or for that matter any part
of the hypothalmus?
Someone else on a neurology forum referenced a Cuban man who had encephalitis
as a kid, which wrecked his either thalamus or hypothalamus, and he didn't
sleep for forty years. Apparently he "rested" or went into a light stage of one
and tiny bits of two sleep, no 3, 4 or REM. He needed to "rest" though, and
felt it akin to meditation. Anyways, they couldn't induce any sleep with any
medication on him. He was apparently evauated at the Stanford Sleep Center back
in the 80's but I haven't been able to find any reference to this study.
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