Been working all day, and for many hours over the last decade, on thinking of ways to find genes for epilepsy. I've helped find a few so far, but there are still many more to discover.
Finding genes helps us understand the disease mechanisms better. Once we find the gene we can study how it functions, and then try to correct the mistake so it no longer causes epilepsy. That's a very simplistic version.
This is actually my day job, what I do for my career. And one of the marks I want to make on the world is helping cure epilepsy. For all the people who have it, especially my family members.