Summary:

- The article discusses how the biological process of puberty has not changed significantly since the Ice Age, despite the dramatic societal and technological changes that have occurred over the past millennia.

- Researchers have found that the timing and sequence of puberty-related hormonal changes and physical developments have remained relatively consistent across different human populations and time periods, suggesting that this fundamental aspect of human development is deeply rooted in our evolutionary history.

- The article explores how factors like nutrition, stress, and exposure to endocrine-disrupting chemicals may influence the onset and progression of puberty, but the core biological mechanisms have remained largely unchanged since our ancestors' time.