The objective physical characteristics of Lifelines participants (not associated with any particular diseases & symptoms) were measured during the first visits of assessments 1A and 2A (and 3A). In addition, concentrations of various biomarkers were analysed in the blood samples and urine samples collected during the second visits of assessments 1A and 2A (and 3A) .

The variables in this section are organized in the following subsections:

1. Skin autofluorescence
2. Anthropometry (measured)
3. Anthropometry (self-reported)
4. Blood pressure
5. ECG
6. Pulmonary function test
7. Jump test
8. Hair properties
9. Skin properties (QSKIN)
10. Blood analyses
11. Urine analyses
12. DNA analyses (see GWAS and UGLI)
13. Faeces analyses (see DEEP and DAG3)