Letting your mind wander from time to time can actually help your brain process information, and can serve as a workout for your "working memory," or your mental capacity for handling multiple thoughts and dealing with competing issues simultaneously. In fact, a new study published in the journal Psychological Science suggests that if you frequently catch yourself daydreaming, you may have a strong working memory—meaning you can focus on multiple things and daydream without forgetting the things you have to work on. More »