The brain is a complex thing and we're still studying it. But as it turns out, it can act like how hard drives do. According to some new discoveries, our brains can actually delete useless information to make room for other relevant and useful information.

Judah Pollack and Olivia Fox Cabane wrote about the way our brain works in this fascinating Fast Company article.

Glial cells in our brains are responsible for making sure signals move fast. Microglial cells act like pruners in a garden to cut away the fat that take up too much space in our brains.

You need to rest often to make pathways for glial cells to move about, which help you learn new skills quickly.

And if you force yourself to obsess over something, your mind is going to train itself into becoming better by getting rid of the things that stand in your way.