In “You Can Grow Your Intelligence,” research shows that the brain is very similar to muscles in the human body. To allow muscles to become larger and stronger, they need to be worked out. Brains are very comparable by when someone is learning something new, and when those things are practiced, certain parts of the brain get larger. The brain is working out when learning new things and the neurons multiply, and get stronger triggering someone to understand the topic. Growing intelligences can happen at any age, or even to animals. Animal brains grew when they were placed in an area with other animals and toys because they learned how to use the toys, and get along with other animals. The more often a person works out their brain the easier
