As life expectancy increases, many of us are keen to know how to stay healthy in our older years. According to figures from the Office for National Statistics (ONS), the average life expectancy in the UK is 79.1 years for men and 83 for women. The latest ONS projections show that those born recently will live even longer – boys born in the UK in 2023 can expect to live, on average, to 86.7 years and girls to 90 years, while 11.5% of boys and 17.9% of girls born in 2023 are expected to live to at least 100. In recent years, there has been an increasing interest in longevity and healthspan – the period of life spent in good health – rather than lifespan, which is the total number of years lived. So what can this growing area of research tell us about why some age better than others? What can we learn from the superagers?