 which has side effects, by the way. Bad taste in the mouth, number one side effect of Paxlovid. Pretty unpleasant for some people. All right, this item, astaxanthin, a supplement that we've talked about here on Intelligent Medicine. It's the kind of thing that's used to color salmon. Farmed salmon is gray ordinarily, but you feed the fish astaxanthin, and it's a red dye. Effects of astaxanthin supplementation on fatigue, motor function, and cognition.