so it's a multiapproach, multiprong approach and a rick in addition it's a chronic disease. >> rose: let me move to jeans and how they task neural paths. >> the humane human brain is what we want to understand and human brain disorders. so the human brain is you what nek but the parts that make up the brn are not unique. the the brain is built from genes, they're about 25,000 genes that are use to make the brain and many brain disorders are at least in part genetic disorders. we want to understand those so that we can understand what the disorder is so we can think of way ways of intervening in the disorder based onhat basic knowledge of wt has gone wrong. so the trick to doing that is that human genes are shared with animals. almost all of them are present in other animals. it's and that's the trick that scientists use to try and translate back and forth understanding biology diggs orders by using genetics and jeans to see what's happening in a normal brain and an abnormal brain. so one example is genes for sleep. so sleep is one of the important thing that the brain does for many h