I'm actually doing it. I'm taking on my biggest ever challenge, and running the London Marathon!

I'll be running for Alzheimer's Research UK, who are an amazing charity leading the research towards finding a cure for dementia. There are currently over 850,000 people living with dementia in the UK, and so every penny helps towards funding pioneering research to help decrease that number. 

There's going to be some ups and downs, and a heck of a lot of blisters, but bring on the marathon on 22nd April!