Scientists at Ohio State University say they've grown the first near-complete human brain in a lab. The brain organoid, if licensed for commercial lab use, could help speed research for neurological diseases and disorders, like Alzheimer's and autism, Rene Anand, an Ohio State professor who worked on the project, said in a statement Tuesday, "The power of this brain model bodes very well for human health because it gives us better and more relevant options to test and develop therapeutics other than rodents,” Anand said. The brain, engineered from adult human skin cells and grown in a dish for 15 weeks, is about the size of a pencil eraser, according to the university.