[neoncontrails]

It's a smooth muscle vasodilator. Of course it will increase the blood flow of capillaries in the brain, the question is whether that's a good thing. It's plausible that it has some cognitive benefits — but also, entirely plausible that it might lead to oxidative damage. Without more research, it's impossible to say. Amid so many pseudoscientific headlines it's easy to be cynical, but this seems actually like a good research question to be asking.