How to grow your brain if you are a trainer?

If the brain is so important to learning and success, why aren't you as a trainer be more interested in knowing how to develop your brain?

We have met so many trainers that just keep on doing the same thing every day since they begin training.  Interistly our brain only gets better if we use it more often.

Do read Terry Small an interisting brain researcher who writes Brain Bulletin for your brain growth http://www.terrysmall.com/archive.asp