Wordle - a word game has become very popular on social media. Even if you haven't played you must have seen the distinctive yellow, green and white block with scores on your social media. Here's how it can actually be great for your brain health. According to the experts, it is important to challenge yourself with new problem-solving exercises. Puzzles and games, especially those involving novelty, can stimulate and challenge key parts of the brain, including reasoning, language, logic, visual perception, attention, and flexibility.