Get flash to fully experience Pearltrees
Much of the brain is still mysterious to modern science, possibly because modern science itself is using brains to analyze it. There are probably secrets the brain simply doesn't want us to know. But by no means should that stop us from tinkering around in there, using somewhat questionable and possibly dangerous techniques to make our brains do what we want. We can't vouch for any of these, either their effectiveness or safety.
Usually, when we think of "survival of the fittest," we think about the survival of the biggest, strongest, fastest or smartest. But actually, in evolutionary terms, the "fittest" is just the animal or plant best suited for the circumstances, whether that animal is a lizard uniquely suited for the desert or a Golden Retriever with an uncanny but heartwarming knack for basketball. But you're pretty smart, so you probably knew that already.