“You are only as old as you feel,” or so the saying goes. This adage is great for cheering yourself up when the grey hairs start to take root, but science has recently revealed that the time-honoured expression is alive and kicking – the younger you feel, the younger you actually are.

Ground-breaking new research has shown what happens when you follow the lives of 1,000 twenty-somethings over a period of ten years. A team of American and New Zealand scientists monitored each volunteer’s ‘biological of age’ over this period, measuring their ‘true age’ through tests for cholesterol, heart and lung health, immune system function and DNA damage (among other things). Incredibly, they found that each person’s body aged at a different rate. Read more