The stages of the life cycle, Ageing

When do girls start to menstruate ?

In France, first menstruation or "menarche" occurs at around age 13. According to a survey conducted in 1994, half of all girls had already started menstruating at age 13. Most girls (9 out of 10) have their first period between ages 11 and 14.

Institute for the study of longevity, ageing, and the different situations of older persons

Longevity, ageing and the situations of older persons are major social, health, quality-of-life and public policy issues in today’s society, issues that require a multi-disciplinary human and social sciences (HHS) approach if we are to grasp how the questions they raise are interrelated.

French youth policy: critical analysis and recommendations

Stéphane Carcillo (OECD, Sciences Po), Claire Guichet (CESE, Paris II, CERSA), Bruno Palier (CNRS and Sciences Po) and Olivier Thévenon (OECD and INED) shared their answers to this question at a round table discussion at INED on May 27, the closing event of the Demographic Economy unit research day on transitions to adulthood. The following is a summary of their remarks.

The number of girls and boys at birth

by Géraldine Duthé Figuring out population change, videos about fundamental demographic issues December 2018 Duration:2’20

Life table

All countries

Population by age