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Science
LEADING EDGE
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Thursday 21:00-21:30
Leading Edge brings you the latest news from the world of science. Geoff Watts celebrates discoveries as soon as they're being talked about - on the internet, in coffee rooms and bars; often before they're published in journals. And he gets to grips with not just the science, but with the controversies and conversation that surround it.
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Listen to 27 March
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GEOFF WATTS
Geoff Watts
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Thursday 27 March 2008
Obesity - there's new research into a 'calorie-counting' area of the brain.
The fight against obesity - do we crave calories rather than the actual taste of food?

The brain's calorie counter

The current obesity epidemic has galvanised scientists into working out the biological ways in which we control our food intake. Geoff Watts examines new research into a so-called “calorie counting” area of the brain. Could this, rather than the taste of food, be the main reason why over the long term we get satisfaction from high calorie foods and why so may diets fail after just a few weeks?

The Able Prize for maths

Mathematician Marcus Du Sautoy reports from Oslo on the announcement of this year's winner of the mathematical equivalent of the Nobel prize.

Shark tagging

Tagging great white sharks is providing new insights into their elusive routes round the globe – knowledge that could help tighten conservation regulations of one of the ocean’s most endangered animals.

Transplanting hearts

And a new approach to repairing hearts - Roger Laham at Harvard Medical School is pioneering a new technique; transplanting healthy heart tissue to the site of the attack in the same heart, which could transform long term outcomes for heart attack patients.

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