You will be provided with more information about the study such as its purpose, procedures and possible risks involved. Information on your rights as a participant will also be shared. Time will be given to you to ask any questions about the study and to consider your participation.

With your consent, a certified research coordinator will collect a fasting blood sample of approximately 30 ml (6 teaspoons) to assess your metabolic status. The study will also analyze biomarkers that may affect brain function. Additionally, a small hair sample will be collected for a longitudinal cumulative cortisol assay.

This interview will gather information about your background (e.g., age, gender, education, and job), mental health (e.g., depression, anxiety, and substance use), and social experiences (e.g., loneliness, childhood experiences, and social media use). It will also look at positive factors that support well-being (e.g., resilience and social support), as well as personality, healthcare use, life challenges, family history of depression, and overall quality of life. All responses will be collected through an online platform.

During the assessment, physical health measurements such as height, weight, blood pressure, hip and waist circumference and grip strength will be recorded to provide a comprehensive overview of your overall health.

You will receive an inconvenience fee as specified in the informed consent form, and you will be required to sign the payment voucher upon reimbursement.