👉 Ehrhardt's disease is a rare genetic disorder that affects the nervous system, particularly affecting the parasympathetic nervous system in the brainstem and spinal cord. It typically starts in childhood or adolescence and has been linked to environmental factors such as exposure to certain chemicals, infections, and stressors. The specific cause of Ehrhardt's disease is not fully understood but is thought to be caused by a mutation in the gene encoding the parasympathetic NMDA receptor.
