1. The left and right hemispheres of the brain control different cognitive functions, with the left brain being more logical and analytical while the right brain is more holistic and intuitive.
2. The left brain excels at processing information sequentially, using words and symbols, following rules, and adapting to reality. The right brain prefers to see the big picture first and then break it down, relies more on intuition and senses, and is more creative.
3. The author believes they are predominantly left-brained due to preferring linear and sequential thinking, making lists, following routines, and adapting well to their environment and schedule. However, both hemispheres are used.