 to work. That's what gold standard means. It means it's the best. So it works. And like I said, it's been around for like, I don't know, 50 or 60 years. And what it does, it guides the brain back to optimal. And what are we trying to get back to optimal is the brain waves. So if you look at your brain waves, again, I'm going to try to keep this very general. I don't want to get too specific. But if you keep this very general, if you have alpha, beta, theta waves, and so let's just take the alpha waves. If the alpha waves are supposed to be a 70-30 split right to left,