At Kyoto University's CiRA, Kenji OSAFUNE is using iPS cells to find drug for hereditary kidney disease and has also created cells for kidney transplants. Take an in depth look at his challenges.

Tiny nematodes can survive in harsh environments, regenerate damaged tissue, remember things and make decisions. Sharing 70% of their genome with humans, they're being studied for hints about new medicines and human longevity. We'll also look at the world's first fully recycled concrete.