Episode guide
Horizon: 2009-2010
14 episodes · first aired Oct 13, 2009
TMDB has no overview for this season.
- 1 Do I Drink Too Much? Oct 13, 2009 · 1h Alcohol is by far the most widely used drug - and a dangerous one at that. So why are so many of us drinking over the recommended limits? Why does alcohol have such a powerful grip on us?…
- 2 The Secret You Oct 20, 2009 · 1h With the help of a hammer-wielding scientist, Jennifer Aniston and a general anaesthetic, Professor Marcus du Sautoy goes in search of answers to one of science's greatest mysteries: how…
- 3 Fix Me Oct 27, 2009 · 1h Horizon follows the emotional journey of three young people with currently untreatable conditions to see if, within their lifetime, they can be cured. Sophie Morgan is determined not to…
- 4 Who's Afraid of a Big Black Hole? Nov 3, 2009 · 1h Black holes are one of the most destructive forces in the universe, capable of tearing a planet apart and swallowing an entire star. Yet scientists now believe they could hold the key to…
- 5 Why Do We Talk? Nov 10, 2009 · 1h Talking is something that is unique to humans, yet it still remains a mystery. Horizon meets the scientists beginning to unlock the secrets of speech - including a father who is filming…
- 6 How Long is a Piece of String? Nov 17, 2009 · 1h Alan Davies attempts to answer the proverbial question: how long is a piece of string? But what appears to be a simple task soon turns into a mind-bending voyage of discovery where nothing…
- 7 The Secret Life of the Dog Jan 6, 2010 · 1h We have an extraordinary relationship with dogs - closer than with any other animal on the planet. But what makes the bond between us so special? Research into dogs is gaining momentum…
- 8 Why Do Viruses Kill? Jan 13, 2010 · 1h Just months ago, the world stood in fear of an emerging new disease that threatened to kill millions. A new flu variant H1N1 had arrived. In the UK alone, 65,000 deaths were predicted. Yet…
- 9 Pill Poppers Jan 20, 2010 · 1h Over a person's lifetime they are likely to be prescribed more than 14,000 pills. Antibiotics, cholesterol lowering tablets, anti-depressants, painkillers, even tablets to extend youth and…
- 10 Don't Grow Old Feb 3, 2010 · 1h For centuries scientists have been attempting to come up with an elixir of youth. Now remarkable discoveries are suggesting that ageing is something flexible that can ultimately be…
- 11 To Infinity and Beyond Feb 10, 2010 · 1h By our third year, most of us will have learned to count. Once we know how, it seems as if there would be nothing to stop us counting forever. But, while infinity might seem like an…
- 12 What Makes a Genius? Feb 17, 2010 · 1h Could you have come up with Einstein's theory of relativity? If not - why not? This is what Marcus du Sautoy, professor of mathematics, wants to explore. Marcus readily admits that he is…
- 13 Did Cooking Make Us Human? Mar 2, 2010 · 1h Horizon examines the evidence that our ancestors' changing diet and mastery of fire prompted anatomical and neurological changes that took us out of the trees and into the kitchen.
- 14 Is Everything We Know About the Universe Wrong? Mar 9, 2010 · 1h There's something very odd going on in space - something that shouldn't be possible. It is as though vast swathes of the universe are being hoovered up by a vast and unseen celestial…