Never too old. www.shutterstock.com February 25, 2016 People in their nineties reveal the secrets to ageing well Irene Maeve Rea, Queen's University Belfast; Jennifer Rea, UCL, and Ken Mills, Queen's University Belfast You can’t do much about the genes you’re dealt, but the BELFAST study of nonagenarians shows that you can live a long and healthy life if you play your cards well.