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30 minutes
First broadcast:
Wednesday 16 November 2011

When leptin failed to be a wonder solution to obesity, this hormone produced by fat cells, disappeared from the headlines. Twenty years on scientists now believe leptin is critical to how the body works, regulating appetite, the immune response, inflammation and depression. Vivienne Parry investigates.

Producer: Erika Wright.


Inside Science

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Adam Rutherford explores the research that is transforming our world.

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    Frontiers explores new ideas in science and meets the people behind them. There are two six-part…

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