I’m tackling the fearsome climbs of the 112 mile Fred Whitton Challenge in the Lake District on Sunday 12th May (including the vertigo-inducing 33% Hardknott Pass). It’s a tough gig, requiring dedication and determination. But, living with cystic fibrosis (CF) or multiple sclerosis (MS)? Well, it simply doesn't compare.

My 20 year-old daughter, Grace, has the genetic lung condition, CF, as well as CF-related diabetes. Despite recent new therapies - through research funded by the Cystic Fibrosis Trust - to slow lung damage, life expectancy of someone Grace's age still barely touches 40, and she has taken over 200,000 tablets and 9,000 nebuliser treatments so far, just to live a normal life.

That's why I’m raising money for the Cystic Fibrosis Trust to help fund research for better treatments, and support for those with CF.

But I’m aIso supporting three colleagues whose lives are directly affected by multiple sclerosis every day.

So, all funds I raise will be automatically split 50:50 with the MS Society.

In fact, one of these colleagues, Robert Guidi, is generously offering a free download of the two wonderful books in his Young Isambard series, plus audiobook, which I narrated(!), to all sponsors. He will also donate to both charities the profits from any sales of hard copies you buy.

Please help us help those living with CF and MS to be able to live a better life.

Thank you.