 And so within three months, people who had just almost no myelin, their brain is gone, we rebuild it. We have a flip chart on page 26 that goes through all this. And then the next page, I think it's 27. So it takes time to build up, right? Yeah. Well, it's not a buildup when you have Parkinson's disease. You're losing stuff. You're losing everything. It's just leaving scar tissue. What do you mean, to build up the myelin? Yeah, to build up the myelin.