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Author Topic:   The Evolution Of Sleep
frako
Member (Idle past 306 days)
Posts: 2932
From: slovenija
Joined: 09-04-2010


Message 10 of 72 (636680)
10-09-2011 1:23 PM
Reply to: Message 1 by Straggler
10-08-2011 5:41 PM


Given that virtually every animal sleeps i think sleep must somehow be necessary for normal brain function to work.
fun fact:
Dolphins sleep with only half a brain at a time because they have to be constantly concision so they do not drown.

Christianity, One woman's lie about an affair that got seriously out of hand
Jesus was a dead jew on a stick nothing more

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frako
Member (Idle past 306 days)
Posts: 2932
From: slovenija
Joined: 09-04-2010


Message 22 of 72 (636756)
10-10-2011 4:33 PM


Well i googled and noone knows the exact answer but there are a few hypothesis.
The first is that sleeping allows the body to repair cells damaged by metabolic byproducts called free radicals.
the second one
Another idea is that sleep helps replenish fuel, which is burned while awake. One possible fuel is ATP, the all-purpose energy-carrying molecule, which creates an end product called adenosine when burned. So when ATP is low, adenosine is high, which tells the body that it’s time to sleep. While a postdoc at Harvard, Prober helped lead some experiments in which zebrafish were given drugs that prevented adenosine from latching onto receptor molecules, causing the fish to sleep less. But when given drugs with the opposite effect, they slept more. He has since expanded on these studies at Caltech.
Then thers the theory that the brain does a little housekeeping during sleep and cleans out the superfluous synapses
Or the brain is replying past events reinforcing memory and learning
all of these ideas have some testing behind them

Christianity, One woman's lie about an affair that got seriously out of hand
Jesus was a dead jew on a stick nothing more

Replies to this message:
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frako
Member (Idle past 306 days)
Posts: 2932
From: slovenija
Joined: 09-04-2010


Message 60 of 72 (636933)
10-12-2011 11:39 AM
Reply to: Message 59 by caffeine
10-12-2011 10:24 AM


Re: What is so odd about sleep?
. For starters, they claim that you don't start to dream until the age of about 5 or 6, and thus animals with less detailed cognitive worlds probably don't dream.
My dog dreams you can see him running in his sleep sometimes he moves too much and wakes himself up.
kindof like this

Christianity, One woman's lie about an affair that got seriously out of hand
Jesus was a dead jew on a stick nothing more

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Replies to this message:
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 Message 66 by Larni, posted 10-12-2011 1:51 PM frako has replied

  
frako
Member (Idle past 306 days)
Posts: 2932
From: slovenija
Joined: 09-04-2010


Message 68 of 72 (636965)
10-12-2011 2:27 PM
Reply to: Message 66 by Larni
10-12-2011 1:51 PM


Re: What is so odd about sleep?
lol last weak i sleepwalked, never happened to me before, i was stoned out of my mind and passed out on the couch at 4 in the morning my girlfriend woke up and herd the tv was on she went to the living room and when she turned off the tv i stood up and started to talk about how im sorry i am sleeping in this house (the house is mine lol) and how i thought she went away and i came in. I dunno what i was dreaming about i rearely remember my dreams i dont even recall this scenario my girl told me the next morning lol

Christianity, One woman's lie about an affair that got seriously out of hand
Jesus was a dead jew on a stick nothing more

This message is a reply to:
 Message 66 by Larni, posted 10-12-2011 1:51 PM Larni has replied

Replies to this message:
 Message 69 by Larni, posted 10-12-2011 4:27 PM frako has replied

  
frako
Member (Idle past 306 days)
Posts: 2932
From: slovenija
Joined: 09-04-2010


Message 70 of 72 (636974)
10-12-2011 4:43 PM
Reply to: Message 69 by Larni
10-12-2011 4:27 PM


Re: What is so odd about sleep?
lol at least i was asleep i sleep for at least 2 hrs before my girl tried to turn off tv

Christianity, One woman's lie about an affair that got seriously out of hand
Jesus was a dead jew on a stick nothing more

This message is a reply to:
 Message 69 by Larni, posted 10-12-2011 4:27 PM Larni has not replied

  
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