Tbi injury specifically shunt questions.

Hello how are you I just got a few questions, might be a long paragraph about a brain injury specifically shunt information. For example somebody got a brain injury as a baby and got a shunt which now as an adult is inactive. What does it mean if it’s inactive? Would it still need to be replaced if it gets broken even when it’s inactive? This somebody will only use Mushroom Supplements and more natural way to help heal instead of prescribed medical prescriptions, does that have a big impact? Definitely is beyond brilliant and knows so much information from basic stuff to more in depth stuff into history etc. Can this help cognitive ways mostly getting older into adult years, and what is the usual lifespan with a something like this?