This section contains variables that objectively describe physical characteristics of Lifelines participants (i.e., not associated with any particular diseases & symptoms). It includes physical parameters measured during the first visits of assessments 1A, 2A, and 3A, and biomarkers measured in biosamples collected during the second visits of assessments 1A, 2A and 3A. Other objective physical characteristics were measured using questionnaires or in various additional assessments.

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
9. Skin (QSKIN)
10. Teeth
11. Biosamples - blood
12. Biosamples - urine
13. Biosamples - faeces
14. Biosamples - hair
15. Biosamples - DNA