https://quillette.com/2019/04/23/self-harm-versus-the-greater-good-greta-thunberg-and-child-activism/
Greta is eleven years old and has gone two months without eating. Her heart rate and blood pressure show clear signs of starvation. She has stopped speaking to anyone but her parents and younger sister, Beata.
After years of depression, eating disorders, and anxiety attacks, she finally receives a medical diagnosis: Asperger’s syndrome, high-functioning autism, and OCD. She also suffers from selective mutism—which explains why she sometimes can’t speak to anyone outside her closest family.
Greta is not alone in her mental suffering, according to the book. Her sister Beata, who was 12 when the book was written, lives with ADHD, Asperger’s syndrome, and OCD. She is prone to sudden outbursts of anger, during which she screams obscenities at her mother. What would normally be a 10-minute walk to dance class takes almost an hour because Beata insists on walking with her left foot in front, refuses to step on certain parts of the sidewalk, and demands that her mother walk the same way. She also insists that her mother wait outside during class—she isn’t allowed to move, even to go to the bathroom. The child still ends up weeping in her mother’s arms.