Finding misery in even the best circumstances was always one of writer Olga Khazan's special talents. So she set out to change her personality, using science to become more open, less neurotic, and maybe even a little happier. Starting as an experiment for The Atlantic, Khazan tested whether an introvert can learn to be more comfortable in social situations and if a procrastinator can be more productive. Her new book is called Me, But Better: The Science and Promise of Personality Change.