I got the camera angle wrong. That one is just amateur stuff, but what she was saying, as you could make out, was about neurons, with her hands were like that, and she was saying neurons communicate.
L'angle de la caméra n'est pas bon. C'est une vidéo amateur, mais elle parle, comme vous pouvez le deviner, des neurones, avec ses mains comme ça, elle dit que les neurones communiquent.