About 10,500 people in the UK have Cystic Fibrosis. It is a genetic lung condition that affects roughly 1 in every 2,500 babies. For those affected, average life expectancy is a very low 37 years, although this is much greater than what it used to be. I have always been aware of it because tragically, my cousin was born with cystic fibrosis and died aged just 18. This was thirty years ago when treatments were not as good as today.