The explanation to this phenomenon is that exercise undoubtedly promotes brain cells’ growth in a person. One last example of how you can train your brain is by playing with it. Once in a while, try to challenge your brain to do something new while having fun. Things like having a light conversation with a friend about a certain issue. Learning a new language, answering challenging quizzes or even doing puzzles. However easy the activity is, it will surely help in developing your ultimate mind power