A year after dozens of you helped me raise nearly £1,500 in memory of my brother Duncan, I’m running the Royal Parks Half Marathon again.

It’s nearly two years since Duncan died from complications stemming from his aortic dissection, aged 55. He is deeply missed every day by his family and friends.

It's a condition that kills more people in Britain each year than die in car crashes - but one that has little profile.

It happens when the wall of the aorta, the main artery in the body, tears. Blood then leaks between the layers that make up the walls of the arteries causing it to swell, and blood meanwhile draining from the heart. Over time this can burst, proving fatal.

2000 people per year lose their lives from aortic dissection in the UK.

The Aortic Dissection Charitable Trust is the UK and Ireland charity uniting patients, families and the medical community in a shared goal of improving diagnosis, increasing survival and reducing disability due to aortic dissection.

Put simply, better diagnosis means better treatment and better survival rates. The diagnosis by doctors in Cardiff in September 2022, shortly before Duncan was rushed to St Barts, ultimately gave his family and friends 14 more cherished months with him.

Out of bad news should always come something positive. A chance to stop the same thing happening again, or at the least decrease the chances.

We managed to raise an extraordinary amount last year, and this year it'll be bolstered by my Duncan's son Ethan (who is far braver than I am) who is running the Chester Marathon for charity the week before.

So I'll be running around the parks and streets of central London once again, just half his distance.

I have set a modest fundraising target, but I'm hoping to beat it with your help.

Donate a little, donate a lot, but just donate something. Every pound and penny is greatly appreciated.