This week - Humanity 2.0! Can we use genetics, drugs and technology to become superhuman? We speak to experts on the science that can push us to our extremes, and meet the world's first cyborg. Plus, in the news, do men and women really think differently, why what we call a "kilogram" is changing, and researchers uncover an animal that can talk about the past.More at www.nakedscientists.com Like this podcast? Please help us by supporting the Naked Scientists