1. Ageing and health. (2022). https.//www.who.int/news-room/fact-sheets/detail/ageing-and-health.
2. World population prospects. (2022). https.//www.scribd.com/document/599874095/undesa-pd-2022-WPP-summary-of-results.
3. What is aging and what are its main theories?. (2021). https.//www.bbva.ch/en/news/what-is-aging-and-what-are-its-main-theories/.
4. Molecular damage in aging;Gladyshev VN;Nat Aging,2021
5. Principles of the molecular and cellular mechanisms of aging;da Silva PF;J Invest Dermatol,2021