Diana Hill

Enlightening, uplifting and refreshingly innovative, this series takes a pioneering journey through the unexplored galaxy inside our own heads. Combining cutting edge science with extraordinary experiments, dazzling graphics and inspiring human stories, it shows how personality is formed throughout our lives and how our minds work to win friends and influence people. By exploring the science behind the workings of the human mind, the programmes reveal what each of us can do to make the most of its remarkable capability - including how to literally 'think faster' and even master our most powerful emotions.

Dallas Campbell delves into the Horizon archive to discover how our understanding of intelligence has transformed over the last century. From early caveman thinkers to computers doing the thinking for us, he discovers the best ways of testing how clever we are - and enhancing it.