Section 1: Introductory chapters, correlates and setting the scene<br>1. Biopsychosocial aspects of mental health: A focus on the school environment<br>2. Mental well-being and the use of social media<br>3. Well-being and quality of life among youth with a mental health<br>4. The medical professions and their mental and physical well-being<br>5. The bidirectional relationship of poor physical well-being and stress<br><br>Section 2: Body fluids as biological correlates of well-being<br>6. Low-density lipoprotein (LDL) in serum and measures of well-being<br>7. Cortisol, well-being and the older person<br>8. Endocannabinoid system, inflammation, and mental well-being<br>9. Beta-endorphin and negative traits of well-being<br>10. Positive psychological well-being and inflammatory biomarkers IL-6 and CRP: A narrative review<br>11. Well-being and circulating serotonin<br><br>Section 3: Physiology and imaging as biological correlates of well-being<br>12. Use of electroencephalography (EEG) to investigate quality of life domains: Applications to epilepsy<br>13. Non-invasive measures of acute mental stress<br>14. Neuroscience of meditation for holistic well-being<br>15. Physiological responses to acute and cumulative dance exposures<br>16. Functional magnetic resonance imaging (fMRI) and well-being<br>17. Neural processing of odors and measures of well-being<br><br>Section 4: Genetic correlates of well-being<br>18. Meditation and the regulation of immune response genes<br>19. Genes, polymorphisms and linkage with muscle strength and quality of life<br>20. GWAS in occupational health: Unraveling gene-environment interactions, from discovery to the ethical frontiers of precision health<br>21. Single nucleotide variants and their association with subjective well-being<br><br>Section 5: Resources<br>22. Recommended resources for the biological measures of well-being