From the ELSA website:
“The English Longitudinal Study of Ageing (ELSA) collects data from people aged over 50 to understand all aspects of ageing in England. More than 18,000 people have taken part in the study since it started in 2002, with the same people re-interviewed every two years.
ELSA collects information on people’s physical and mental health, wellbeing, finances and attitudes around ageing and how these change over time. Data from ELSA participants informs policy across all aspects of ageing including health and social care, retirement and pensions policy, and social and civic participation.”