Quote Originally Posted by marijuanavillebilly
sorry dude, but the truth is humans use about 85-100% of their brain. (depending on the situation)
Well... even if we use our whole brain (what i doubt very much), it does not mean that we are using it at its full capacity.
It may be like a factory with with lots of workers and very few work to do. Everybody may be working, but each worker can be working very slowly, chatting a bit, having a coffee, smoking a joint...

Quote Originally Posted by marijuanavillebilly
it may not be noticeable but the next time you sweat, get thirsty, get hungry, feel pain, feel any sensation at all, that your brain had to go and find the memory of those things by itself without being asked, just doing it, and giving it to your body in a matter of milli-seconds.

your brain has the ability to delay certain sensations, such as pain, but only when absolutely necessary will it do this.

your brain is constantly doing minor and major adjustments to your body, keeping you alive, so if im using 10%, how do i survive doing math problems?
Well... while it is indeed an amazing work our brain does, still it is not everything that our brains can do. It is only a very small part of all our possibilities. Most of our brain skills we dont even know we have.
When we are babies, our brains have its full potential. Then, during our growth and learning, we start to use some areas of it, which are related to the things we learn to do, and stop to use other areas of it, which are not related to the things we learn to do. So, what we learn when were childs is what defines which areas of our brain we will keep using, and which areas will be "turned off" due lack of use.
So, when we are adults we are masters of using only the parts of the brain we learned to use, and think its all our brains can do.