that flawuid we're going to tal about in a second topic as well. that's not only a accusatiocush it absorbs waste products from the brain that the brain makes as it's working. if you have these two very abnormal proteins, if they build up in the fluid around the brain, it may be a marker that five years down the line, you might have a problem thinking. you may be forgetful. you might have a problem with daily activities. you might be on the verge of mild dementia or even alzheimer alzheimer's. if we knew five years in advance, jamie. and that's what this study was. if you could predict five years in advance, maybe we could come up with treatments that prevent it before it actually happens. that's what we do with heart disease. high blood pressure, treat that in advance. we're hoping with alzheimer's, we can treat in advance. and this is the first time we've seen a marker like this that we could focus on. >> how do you find it? is there a test for these markers. >> they're looking at the ratio between the cow protein and beta amlyene. they're coming