Andrew Duncan is kept alive by a mechanical heart pump. He needs a new heart and a new kidney. He has already seen one heart transplant fail.
Most of us would be ready to throw in the towel if faced with such challenges and disappointments, but Andrew is made of much sterner stuff.
On Friday he will undertake a two-mile walk around the Peace Bridge in his native Londonderry to raise funds for the British Heart Foundation's Ramp Up The Red campaign. It is a mere stroll for even an averagely unfit person; for Andrew it is a marathon. But the man, whose condition is caused by a gene defect which also affected many relatives, is determined. Let us hope he does and raises a huge amount of cash.