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Full Episode Guide
What's it like to battle with a dozen people talking inside your head?
This week’s Horizon looks at the lives of three people who have been diagnosed with conditions that feature hearing voices, paranoia and hallucinations
BBC may lose the right to make long-running science series Horizon
8 hair care myths untangled
The contradictions of drugs in sport
Jimmy Carr to host Horizon special on the science of laughter
To vape or not to vape: are E-cigarettes a miracle or a menace?
BBC science series Horizon is going to show us how to be immortal in 2016
6 things people often get wrong about OCD
How to choose the best diet for you...
British Documentary Awards 2014: Horizon: The Secret Life of the Cat
Alice Roberts: Boys' and girls' brains aren't so different
Six steps to happiness, fitness and weight loss