Video report by Iselin Jones
A Jerseyman is aiming to break a Guinness World Record by running the London Marathon on 3 October in the fastest time dressed as a body part - a brain.
Bryce Alford is the Fundraising Manager for brain injury Headway, and is no stranger to charity challenges or Guinness World Records.
In the last 20 years, he has raised more than £150,000 for charity. The last time he broke a Guinness World Record was in 2003 for the fastest 100 kilometres on a treadmill.
He will embrace this year's challenge in a 7kg brain costume, made for him by two friends. He hopes it will help demonstrate how many people with brain injuries feel trapped inside their brains.
Robert Jeffroy is a Headway member who suffered a brain injury after a big fall. Whilst he too knows the feeling of being trapped, particularly with the epilepsy he developed as a result, his injury also opened up new opportunities.
Brain injury is a personal experience, for Bryce too. He had several family members who suffered brain injuries, and this marathon is of particular significance to him.
You can support Bryce in his challenge via his Just Giving Page.