Intellect refers to your problem solving skills and ability to come to correct conclusions. It is closely related to intelligence (your ability to acquire and apply knowledge.) In other words, how smart you are. Increasing your smarts, (book, street or otherwise), is fundamental to succeeding in life. Challenging your brain is a great way to improve intellect and can be done by playing brain games, solving puzzles, engaging in friendly debate or stimulating conversation with others, reading about topics that are new to you, learning an instrument, taking online courses, etc.What is your favourite activity for building intellect?