Vanessa, lung transplant recipient
Vanessa, from Twickenham in London, had a pioneering lung transplant in 2013, after doctors had to figure out a way to shrink her heart.
She'd been diagnosed with Pulmonary Hypertension in January 2005, which had left her heart and lungs struggling for oxygen.
Vanessa said: "Organ donation is the greatest gift that you can give someone."
"I spent Christmas 2013 in hospital, but spent Christmas 2014 with my family and friends. That was all thanks to my organ donor."