Middle-aged women have better memories than men of the same age. Matthew Brown and Brian Dodgeon from the University of London tested over 9,600 men and women as part of the long-term National Child Development Study. Participants were asked to remember ten words and then recall them once after two minutes and again after five. On average the women scored 5% more than the men on the first test and 8% more on the second. Apart from being a woman, not smoking and taking exercise were also found to boost people's scores.