It's been 7 years since Doctor Yamanaka of Kyoto University created human iPS cells. The world's first clinical application of iPS cells to treat age-related macular degeneration begins in Japan this year. Doctor Okano of Keio University joins us to tell us about the iPS cell treatment he's developing for spinal cord injuries. We'll also cover the breakthrough that Doctor Eto of Kyoto University made regarding platelet mass-production. Michelle visits a Takumi that also works with cells!