In this documentary from the Race: Science's Last Taboo season, Rageh Omaar explodes myths about race and IQ and reveals what he thinks are important lessons for society.

Why does the brain look like a giant walnut, how does it fit in enough wiring to stretch four times around the equator, and why could a magnet on the head stop someone mid-sentence?

The brain is constantly being bombarded with information, so how does it decide what to trust and what to ignore, without the person even being aware of it?

Have you ever seen a face in a piece of burnt toast, or given your car a name? Why do you feel pain when someone else is hurt? Why are people so obsessed with other people?

Evolutionary biologist and master skeleton builder Ben Garrod begins a six-part journey to discover how bones have enabled vertebrates to colonise and dominate practically every habitat on Earth

Geoffrey Smith's moving film follows Henry as he travels to Kiev to help Igor operate on a young man called Marian, who without surgery has just months to live. When Henry arrives, he faces a serious challenge - Marian must be awake when his tumour is removed, and Henry must use the most basic tools, including a Black and Decker drill.

In a frank and personal documentary, author Sir Terry Pratchett considers how he might choose to end his life. Diagnosed with Alzheimer's in 2008.

Bestselling author Terry Pratchett has early onset Alzheimer's disease. And he wants Alzheimer's to be sorry that it ever caught him. In the second of this two-part series, Terry confronts his future living with the disease. He travels to America to witness first-hand how they are coping with the 'tsunami of Alzheimer's', and meets the unlikely doctor who stumbled across a controversial new treatment that he claims produces remarkable results in minutes.

Stephanie Flanders, former BBC economics editor, has a very personal interest in the battle to beat polio. Her father, Michael Flanders, one half of the world-famous singing duo of the 50s and 60s, Flanders and Swann, was paralysed by the infection when he was 21. He used a wheelchair for the rest of his life, and died early at 53 through complications caused by the disease. Stephanie was just six.

Series in which mathematician Marcus du Sautoy explores the stories behind some of the world's most familiar and influential scientific diagrams.

Hormones shape each and every one of us, affecting almost every aspect of our lives - our height, our weight, our appetites, how we grow and reproduce, and even how we behave and feel.

Filmed in the accident and emergency wards of two Midlands hospitals, this episode highlights the alcohol-related casualties and fatalities that are pushing NHS staff to the limits of their endurance…

In this major three-part series, Chris and Xand van Tulleken uncover the latest secrets of our bodies.

Around the world, obesity levels are rising. More people are now overweight than undernourished. Two thirds of British adults are overweight and one in four of us is classified as obese.

Jacques Peretti investigates how the concept of 'supersizing' changed our eating habits forever. How did we - once a nation of moderate eaters - start to want more?

Jacques Peretti examines assumptions about what is and is not healthy. He also looks at how product marketing can seduce consumers into buying supposed 'healthy foods' such as muesli and juices, both of which can be high in sugar.

The programme asks whether the introduction of the contraceptive pill was a blessing or burden for women in the 1960s

In the 2013 Richard Dimbleby Lecture, one of the world's greatest entrepreneurs and leading philanthropists, Bill Gates, explains his optimism for a world free of the debilitating disease, polio. He explains why he is devoting so much of his time, money and influence to eradicating polio, and how we can all help to finish the job.

Michael Mosley takes an informative and ambitious journey exploring how the evolution of scientific understanding is intimately interwoven with society's historical path.

Nigel, a surgeon, talks about the life saving operation he performed on a young man gunned down on the street in a case of mistaken identity. He might recover physically, but the mental scarring will last years.

The story of a young man suffering from severe post-traumatic stress disorder, and his last chance of recovery, using dolphin-assisted therapy.

Every year in Pakistan, over 100 people - mostly women - suffer brutal acid attacks. Saving Face follows plastic surgeon Dr Mohammad Jawad as he tries to help them.

In a never-before-seen side of life in Pakistan, this film follows the stories of three transgender people, each of whom represent a different way of life in Pakistan.

A hard-hitting documentary following an extraordinary six months in the life of Darcus Howe as he attempts to raise awareness of prostate cancer, a disease which affects one in four black men.

Unreported World reports on the huge growth in cosmetic plastic surgery in Brazil.

Unreported World meets the NHS doctor who is risking his life by providing front-line medical care to the victims of the conflict in Syria.