A 31-year-old management consultant who beat thyroid cancer twice is hoping to complete Sunday's Great North Run just four months after major surgery.
Findlay Young crosses the finishing line in 2004
The challenge will be Findlay Young's fifth half-marathon since first being diagnosed with cancer in July 2003.
Mr Findlay, who was told his cancer had returned in April this year, is running for Cancer Research UK.
Mr Young, of Islington, London, ran his first four half-marathons in the four countries of the UK in 24 hours.
He covered 52.4 miles and approximately 1,000 miles non-stop by plane, train, automobile and helicopter to raise £10,000 for the charity last year.
He said: "My energy levels have been going up and down since the last operation and I haven't been able to do much training for the Great North Run.
"I'm seeing this as a great personal challenge. Last year I was running to celebrate being all clear for one year. This time I'm running to celebrate being alive. I think it will be a much more emotional journey."
Cancer Research UK supports the work of a team of 3,000 world-class scientists, doctors and nurses.
Olympic medallist Brendan Foster said: "Findlay's courage symbolises the strength and determination of the thousands of runners who join the run every year to raise essential funds for charity."
More than 50,000 runners are expected to take part in Sunday's 25th Bupa Great North Run which begins in Newcastle and ends at the seafront at South Shields.