Horizon meets the people living with OCD, looks at the therapy available and asks what neuroscience can offer by way of a cure. Show more
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Until very recently the whole idea of the multiverse was dismissed as fantasy. Horizon asks whether multiple universes exist and, if so, which one we are actually in. Show more
Series exploring topical scientific issues. With many concerned about internet surveillance, Horizon meets the hackers and scientists whose technology is fighting back. Show more
Horizon explores the differing opinions on video games. They frequently stand accused of causing violence and addiction in young people - but is there truth in the claim? Show more
Series exploring topical scientific issues. Dr Michael Mosley and Professor Alice Roberts investigate whether male and female brains really are wired differently. Show more
Series exploring topical scientific issues. A look at the evidence of gravitational waves - ripples in space and time - discovered at the South Pole in March 2014. Show more
Series exploring topical scientific issues. How bad can our drinking pattern be for our health? Doctors and genetically identical twins Chris and Xand van Tulleken find out. Show more
Series exploring topical scientific issues. This special episode of Horizon meets the scientists and doctors from all around the world seeking a cure for the Ebola virus. Show more
Documentary investigating the use of modern medical technology to scan Egyptian animal mummies from museums across the world. Show more
Series exploring topical scientific issues. Horizon follows two allergic families to investigate claims that the modern western lifestyle is responsible for the 'allergy epidemic'. Show more
Michael Mosley subjects himself to a variety of health tests that are available to those who feel perfectly well, in order to discover which of them are worth doing. Show more
Series exploring topical scientific issues. Dr Michael Mosley investigates the latest science on eating meat and puts the studies to the test by going on a high-meat diet. Show more
Series exploring topical scientific issues. Dr Michael Mosley investigates the impact of meat production on the planet and discovers what meat eco-friendly carnivores should buy. Show more
Horizon reveals the scale of the problem of space junk. In 2014, the International Space Station had to move three times to avoid lethal chunks of space debris. Show more
Series exploring topical scientific issues. A look at dark matter and dark energy ahead of the Large Hadron Collider being switched on in March 2015, having been upgraded. Show more
Series exploring topical scientific issues. A look at how new planets being discovered are forcing scientists to rewrite the history of our own solar system. Show more