Changes to the bacteria that live inside all of us are responsible for increasing the number of people with allergies, suggests new research. The programme investigates this claim by conducting a unique experiment with two allergic families in order to find out just what it is in the modern world that is to blame.
Episode 2 – exposes how the industrial revolution opened the floodgates for highly-processed convenience foods that became "our daily bread." But those pseudo-grains are known to contribute to chronic disease. Natural, whole grains support longevity and lower the risk of heart disease. Grain of Truth also explores the debate over gluten as a dietary evil.
The series offers a fresh look at the science behind teeth and dentistry, and what we can all do to improve our oral health. The programmes feature patients undergoing treatment for missing or broken teeth, decay, gum disease, and a range of other problems – sometimes to the extreme. The series also features a strong public health message, with experiments on and information about everything from correct tooth brushing to the effectiveness (or otherwise) of over-the-counter tooth whitening kits.
Dr Kevin Fong examines what can be done to reduce the number of mistakes being made by surgeons in the operating theatre. Speaking to professionals in high-pressure careers - including airline pilots, firemen and Formula One pit workers - he explores the coping mechanisms they each employ when faced with emergency situations, and looks at how these tactics could be transferred to the world of surgery.
Psychopaths have long captured the public imagination. Painted as charismatic, violent predators lacking in all empathy, they provide intrigue and horror in equal measure. But what precisely is a psychopath? What is it that drives them to cause harm, even kill? And can they ever be cured? Presented by psychologist professor Uta Frith, this is an in-depth exploration of the psychopathic mind including one of the most notorious of all, Moors murderer Ian Brady. Through an ongoing correspondence between the Horizon team and Brady, the film features some of the very last letters he wrote. The film also features a series of candid interviews with prison inmates who not only describe their crimes but why they think they committed them. Horizon explores not only how each individual's crimes were shaped by their own life experiences, but also gives an insight into how these people think and behave. Working with the world's experts in the field, the film sheds light on the biological, psychological and environmental influences that shape a psychopath. And it looks to the future, with groundbreaking research that suggests a lifetime of incarceration is not the only option to manage violent and dangerous psychopaths.