I watched another brain surgery episode last night. A lady had been having severe headaches all her life and had 2 strokes by the age of 35. They had to chop up a nerve and attach it to another which increased blood pressure from 35 to 99 and apparently made a major change on her life.

It was incredible. He managed to join two nerves less than 1mm in size and when the blood flow was reactivated you'd expect some leakage when all he used was tiny stiches, but there was nothing!