Article Source: BBC News

In 1997, Diane Van Deren decided to have brain surgery in a bid to stop the epileptic seizures that were dominating her life.

Twelve years on, Diane, from Sedalia in the US state of Colorado, is a champion long-distance runner - an ultra-runner - and free from seizures.

In February, she was the first woman to complete 430 miles (690km) on the Yukon Quest Trail.
The race is known as the coldest, most difficult and extreme race in the world.

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