Kaye Wellings is Professor of Sexual and Reproductive Health Research at the London School of Hygiene and Tropical Medicine. Wellings was a founder of the National Survey of Sexual Attitudes and Lifestyles. She led the first global study of sexual behaviour, based on analysis of data from 59 countries and has been charged with the national evaluations of several national sexual and reproductive health interventions, including England's Teenage Pregnancy Strategy. She is an elected Fellow of the Faculty of Public Health, of the Faculty of Sexual and Reproductive Health, of the Royal College of Obstetricians and Gynaecologists and of the Academy of Social Sciences.