10% of the brain

I'm not a a learned man on this subject. I have read few sources on this area, but I have heard that you only use about 10% of your brain's ability. People have speculated that if we use more of our brain power we could do things like telekinesis thus dooming the human race to be fat lazy bastards. Mind reading and matter manipulation are other tools our brains could master once we expand the power of our brains.

However I was recently thinking something different: What if the rest of the other 90% of our brains are just the things that control our heartbeat and our temperature, like nothing else. If true it means if we do have control over the rest of our brains we'll be consciously controlling how much digest fluids should be in our stomach. When will we ever have to time to think about things like poetry, or betting or new versions of rock paper scissors?

Maybe this is why Neanderthals had bigger brains because evolution hadn't worked out that we needed to save some of that power to concentrate on better hunting and foraging techniques. Then as our brains learned these repetitive tasks can be solved if it does them automatically. So they created this thing called the conscious  and we started out thinking predators more efficiently which eventually developed into thinking about the pointlessness of life and other silly philosophies that actually make us want to kill ourselves...oh how the predators have had the last laugh.

 I shall have to come back on this subject when I'm more up to scratch and find out what's really going on.

It has little to do with the subject

but its quite funny.