Not medical conditions:
The Borgia family
Caterina Sforza
The Cadaver Synod
A Song of Ice and Fire / Game of Thrones
Hitler and Stalin’s last days alive
Medical conditions:
Hydrocephalus
Achondroplasia
ADHD
Autism
Cerebral palsy
Ehlers-Danlos Syndromes
Epilepsy
Hitler and Stalin’s health problems
OCD
Psychosis disorders
Russell-Silver syndrome
Spina bifida
Spinal cord injury
Tourette’s
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Life ... that's what leaves the mess. Mad people everywhere.