We have a very bare minimum of knowledge for individual treatment, but only in a very few cases. There are genetic markers known, for example, to impact metabol

We have a very bare minimum of knowledge for individual treatment, but only in a very few cases. There are genetic markers known, for example, to impact metabolism of specific medications, and there are tests (Genesight) to find out your own profile. So there is some very minimal progress on that front. It's a start towards personalized treatments, but we don't always know why a specific genetic marker doesn't work the same way or why an enzyme has such a large impact on things.