Professor Regan takes on the multi-million pound diet industry. Using herself as a guinea pig, she will discover what to eat to lose 10lbs a year. Show more

Professor Regan investigates the world of beauty and discovers if there really are scientifically proven ways to make you look younger and give you the perfect body. Show more

Series exploring topical scientific issues. The programme examines how the nine months you spend in the womb could have more lasting effects than lifestyle or genes. Show more

Horizon tests the limits of the data revolution, crime prediction in LA, financial formulas in the city of London and a South African attempt to catalogue the entire cosmos. Show more

Liz Bonnin and a team of experts conduct a groundbreaking scientific study of cats. They reveal the secret language of cats and why they meow to us but not each other. Show more

Liz Bonnin and a team of experts conduct a groundbreaking scientific study of cats. Discover how pet cats transform into predators. Show more

Liz Bonnin and a team of experts conduct a groundbreaking scientific study of cats, revealing how cats experience the world with the senses of their wild ancestors. Show more

Michael Mosley shows how the most power-hungry generation that has ever lived has harnessed its power from wind, steam and from inside the atom. Show more

Professor Regan investigates the lucrative world of children's products, from snack foods to educational toys, and learns whether they live up to their promises. Show more