British PE teacher looks to smash world record after being diagnosed with life-changing condition when he was 19

The 35-year-old, from Nottinghamshire, is attempting to beat the current Guinness World Record, which was established by Daniel Clarke at the London Marathon.

Mr Kilcourse, who was diagnosed with type 1 diabetes at 19-years-old, has embraced running as a method to manage both his physical health and mental wellbeing whilst living with the condition.

"When I was diagnosed, there was a lot of fear and anxiety and frustration. I was unsure of how life would look," Mr Kilcourse said.

However, the condition has not prevented him from pursuing athletic excellence.

Running has become central to managing his blood glucose levels whilst providing psychological benefits.

"Running has shown me how resilient I can be," he told the BBC.

Kilcourse dedicated 13 weeks to preparing for his record attempt, including participation in the Robin Hood Half Marathon as part of his training programme.

His message extends beyond personal achievement to inspiring others facing similar challenges.

"If you have goals and dreams, regardless of what your diagnosis is, regardless of what life throws at us, we can still achieve those things," Mr Kilcourse said.

"We will be tested, we will face setbacks, we will face challenges, but there are also opportunities to thrive and excel,"

Mr Kilcourse, who teaches at Endeavour Academy's upper school in Daybrook, Nottinghamshire, has picked up the support of the school community.

One of his pupils, Connor, told the BBC: "I like his teaching because I like PE and he tells us never to give up, even if we are losing the game, you keep trying. I think he is going to do it and I'm wishing him all the best."

Headteacher at Endeavour Academy Neil Davies said: "We are thrilled to support Nathan in such an inspiring undertaking. At Endeavour Academy, we encourage our students to dream big, work hard and champion causes that matter to them.

"Nathan is living proof of this, and of our mission statement that through resilience, we endeavour to succeed."

Mr Kilcourse is raising money for Diabetes UK.

He said: "Despite the challenges and unpredictability of running with diabetes, it helps my blood glucose control, my mental clarity and reminds me of how strong and resilient I am.

"Achieving a world record would not only be a huge personal achievement but it will hopefully inspire others and raise awareness of diabetes.

"Any donations will be greatly appreciated."