Homepage Natsal is among the largest and most detailed scientific studies of sexual behaviour in the world London School Of Hygiene And Tropical Medicine University College London University of Glasgow National Centre for Social Research AboutThe National Survey of Sexual Attitudes and Lifestyles Natsal-4About the current study Natsal-COVIDAbout the Natsal-COVID study London School Of Hygiene And Tropical Medicine University College London University of Glasgow National Centre for Social Research Contact UsNameOrganisationEmailMessage 80 plus 1 = leave this one twenty seven thousand