There can be few more philanthropic acts than donating one of your healthy organs to someone who needs it and it must be extra-special when it is your own brother who will gain a new lease of life from the transplant.

With the advancement of medical science, Nigel and Phil Davis' story could become less rare as drugs are developed which mean a perfect match between donor and patient is not as important as it used to be.

On a practical note, organ transplants are also a cost-saving device for an overstretched NHS. A patient on dialysis costs the NHS £30,000 a year, whereas after the transplant the drugs he will need cost £6,500 a year.

The Davis brothers' story shows how easily many of us could help the 7,000 people waiting for an organ donor in the UK.

It is a brave decision to go through such complicated surgery for someone else but surely having good health on your side is justification enough to make that commitment.

Nigel can lead a perfectly normal life with one kidney and he says the transformation in his brother since the operation has been incredible.

Many of us take good health for granted when maybe we should be using it more effectively like Nigel. It really could make a difference to someone's life.