The conventional idea that yawning is a sign of tiredness or boredom is now thought to be incorrect.
Instead, yawning may actually be about regulating the temperature of the brain. Like a computer, the brain operates best within a certain range of temperatures and when it gets too hot a good yawn can help to cool it down, promoting clearer thinking.
In the beginning there were only probabilities. The universe could only come into existence if someone observed it. It does not matter that the observers turned up several billion years later. The universe exists because we are aware of it.
ThesillyfunnyguyIDK, on 15 May 2014 - 01:59 PM, said:
so they can smell your breath and see their vulva, and vice versa, ewwww!!!!
I think you mean uvula but if they want to show the other bits it is fine by me
Edited by Merc14, 15 May 2014 - 04:04 PM.
Believing when there is no compelling evidence is a mistake. The idea is to withhold belief until there is compelling evidence and if the universe does not comply with our predispositions, okay, then we have the wrenching obligation to accommodate to the way the universe really is. - Carl Sagan
That which can be asserted without evidence can be dismissed without evidence. - Christopher Hitchens