Indian adolescents are mostly starting their periods at an earlier age than 25 years ago
Peer-Reviewed Publication
Updates every hour. Last Updated: 3-Nov-2025 11:11 ET (3-Nov-2025 16:11 GMT/UTC)
Indian adolescents are mostly starting their periods at an earlier age than 25 years ago - likely because of demographic factors such as improved education, and possibly even climate change.
A research team has analyzed four decades of data from nearly 1,500 streams across dry regions of the United States and Australia, and found that the number of fish species there has declined amid rising temperatures and reduced precipitation and streamflow.