Follow Share Daniel Hartman This is the page of Daniel Hartman on 24symbols. Here you can see and read its books. 3 bookshelves 2 books Most read Most popular Add this book to bookshelf Add book Book added to the bookshelf Ok Something went wrong and the book couldn't be added to the bookshelf. Please try again later. Ok Polyvagal Theory Explained - How to Calm Anxiety Regulate Your Nervous System and Feel Safe in Your Body Daniel Hartman Vagus Nerve Reset - Simple Exercises to Calm Anxiety Reduce Stress Improve Sleep and Retrain Your Nervous System Daniel Hartman