Biobanking refers to the collection of samples of bodily fluids or tissue for use in research to improve understanding of health and disease. Information, such as height, weight and questions about things that may have a bearing on health (e.g. family history and lifestyle) may also be recorded at the same time, to provide the context for the samples. The samples are often kept indefinitely or for several years, depending on the study, so that long term future research can be carried out.