# Sources and context

Checked 3 November 2026.

WHO · Menopause: https://www.who.int/news-room/fact-sheets/detail/menopause

Stylized signal model · not anatomical scale

Graphics are conceptual illustrations, not patient data. No individual diagnosis or treatment advice.

Hormones as chemical messengers: NIH NIGMS, https://www.nigms.nih.gov/biobeat/2024/07/what-is-a-hormone