Insomnia fish

Study group of medical school found the fish which was insomnia. This group also researching human's insomnia, but they found zebrafish which has mutation gene and this is similar to human's insomnia. The zebra fish which has this gene sleeps less tha 30% that compare to their company. Zebrafish is popular to study group because its cost is more cheap than the mouse and they also has back bone that vineger fly doesn't.