What exercises can you do to sharpen your brain and enhance your critical thinking skills?

Exercise: Deep breathing, fast walking, as well as puzzles and certain video games. You might want to look at Lumosity for different fun brain games, although their results are not guaranteed. And anything that gets more oxygen to your system helps your brain function better!

Train the brain.: Your goal can be achieved by using your brain for higher level activities - crossword puzzles, sudoku and brain teasers. Read books, both fiction and non-fiction. Engage in discussions with others about topics with which you're not entirely familiar. Pick a topic from the news every day and decide to learn more about it through research.