Just as weightlifting and physical exercise builds your muscles, when you’re learning the nerve cells in your brain are growing with mental exercise and these neurons are developing greater connectivity.
The growth and rewiring of our brain cells is called neuroplasticity. As we learn, our brain literally remodels itself based on our new experiences.
Until recently, the conventional thinking was that our brains were hardwired at birth and therefore unchangeable. In actuality, our brains are like malleable plastic that is constantly being reshaped by our daily experiences.

You are the architect of your brain

Ultimately, you are the architect of your brain. When you change your beliefs, learn something new or become mindful of your habitual reactions to unpleasant emotions, you actually alter the neurochemistry and the structure of your brain.
This terrific infographic below details how learning and neuroplasticity works. It also covers how we initially learn unhealthy habit that later turn into addictions and how we can unlearn and rewire our brains to be free of these unnecessary addictions.
Learning is much more than just receiving new information and gaining knowledge from other people. It’s also about the path of continuous growth and living a more optimal life where you are free from habitual addictions and better able to holistically learn from your direct experience.

Rewiring your brain: habits, learning and neuroplasticity

It turns out you can teach an old dog new tricks. Here’s how the process of learning and neuroplasticity works: http://www.diygenius.com/neuroplasticity-rewiring-your-brain-for-optimal-learning/