After thinking she'd never make 40, Jackie Scully is determined to turn her big birthday into a big opportunity to raise money and awareness for charity. So, on her actual birthday, 4th December, she and 24 other challengers will be attempting to break the Guinness World Record for the longest static cycling class in the world. The record stands at 28 hours. They are going for 29. And if that's not enough, the 40 days leading up to the big attempt are going to be a mass fundraiser where Jackie is encouraging as many people as possible to join her by contributing their exercise KMs (be that running, cycling or swimming) to a 40,000KM goal, which is one turn round the world. 40 days, 40,000KMs and £40,000. Why? Because 40 is a birthday she never thought she'd see, after being diagnosed with cancer at the age of 32. And, attempting huge endurance challenges makes her feel alive, particularly after having her hip rebuilt in her 20s. To read more about the adventures, clcik here: Why I’m spending 29 hours in a spin class on my 40th birthday – and why I want you to join me<br/> — The Mintridge Foundation My story has recently been featured on the This Girl Can Stories section and you can read that just here .