She's a bright young graduate who'd would normally have her whole life ahead. But 23-year-old Sarah Horscroft is practically house bound. She was diagnosed with cystic fibrosis when she was just 15 months old, she had half her left lung removed at 18-months. Now Sarah has only 25% of her lung function and is on the waiting list for a transplant. Nearly 1 in 3 people with cystic fibrosis die while on the waiting list. The cystic fibrosis trust says more must be done to help people in Sarah's situation. And you can find out more about cystic fibrosis week and how to become a donor at www.cysticfibrosis.org.uk