They spent most of the next three years searching for answers Russell’s headaches persisted and he began sleeping up to 20 hours a day
After special surgery: Within a week he was normal
Dr. Schievink said, “there are many more in nursing homes, in jail, or who have passed away without the correct diagnosis.”

https://www.cedars-sinai.org/newsroom/cedars-sinai-experts-lift-a-sinking-brain/