The Million Women Study was set up with the aim of recruiting at least 1,000,000 women in the UK into a cohort study of women’s health. While the initial stimulus for the study was to study risk of breast cancer in women using different types of hormone replacement therapy (HRT), the overall aim was – and remains – to investigate common, largely modifiable, risk factors for serious and common diseases in women. We aim to provide reliable information on factors that are important in maintaining good health for women in the long term.

Our work includes a broad range of risk factors (eg. smoking, diet, alcohol, physical activity, social interaction, genetics) and of health conditions (eg. cancer of many types, heart disease, stroke, dementia, mental health and fractures).

Visit the study progress page if you would like to see some of the findings and publications from the Million Women Study.