Scientists at Haifa University have proved that a person’s mood can be determined by examining one’s handwriting. After watching darker, disturbing movies, the 62 study participants all wrote letters of the alphabet smaller in both height and width than after watching positive films.
https://www.haifa.ac.il/index.php/en/home-page3/2889-new-study-our-handwriting-reveals-our-mood
https://www.israel21c.org/how-our-handwriting-reveals-our-mood/