Intellectual health is demonstrated in a person's ability to think critically, question his surroundings, pay attention to current events, and develop creative ways to adapt to unexpected obstacles. People who are intellectually healthy are resourceful and exhibit the capacity to apply academic lessons to real-life situations, maintain an open mind, and see issues from many different viewpoints.
Intellectual health is also evident in a person's zest for life and hunger to continue to learn about the world. These types of people enjoy challenging themselves and are able to remain positive about setbacks. They often employ a strong sense of humor to help them cope with life's difficulties. They are confident in their ability to overcome hindrances and do not give too much attention to negative thoughts.
Intellectually healthy people often involve themselves in activities that test their reasoning and mental agility skills. For people interested in increasing their intellectual health, there are many ways to develop brain power. Develop intellect by playing board games, learning a new language, journaling thoughts and feelings, reading for fun, or learning to play a new instrument. Sudoku and crossword puzzles help to challenge the brain. Some nutritional supplements, such as fish oil and L-glutamine, are also thought to improve brain functioning.