I stumbled accross an informative TED Talk, that deals with two myths: you only use 10% of your brain capacity? And the myth of multi-tasking. 

I share it with you. 

My take-away:

1. We are fearfully and wonderfully made. 

2. Rest (a sabbath) is just plain brilliant - God knew what he was doing. 

3. Eating wisely is good for the welfare of thinking.

4. Focus, rather than the number of irons-in-the-fire produce better results in the long run. This one thing I do, said Paul. (Php 3:13)

5. With such a complex organ, why would you ever want to introduce recreational drugs into the system and run the risk of losing valuable, non-renewable neurons?