A student who had sworn off having children in case she gave them the deadly Huntington's disease says a 'life-changing' scientific breakthrough has changed her mind. Chloe Hall is only 20 years old but says she had already 'decided not to have children' after watching her grandma die from the progressive hereditary disease.

But after researchers made the landmark announcement on Wednesday that a new gene therapy could slow the onset of the illness by 75%, Chloe is 'over the moon' and reconsidering parenthood. The accountancy student says she didn't fully understand the disease as a child until watching her grandmother decline and then die from Huntington's in 2013 - at just 49 years old. Around 7,000 people in the UK suffer from Huntington's, which affects movement, thinking and mood.

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