Puberty is starting earlier than it used to. Why?

Researchers are investigating several potential influences.

View in browser|nytimes.com Continue reading the main story January 10, 2024 Some girls are beginning puberty as early as 6 or 7 years old — an age that has dropped by about three months per decade since the 1970s. No one knows what exactly is driving the trend. Eleni Kalorkoti Here's what researchers do know. → Download the New York Times Audio app on iOS to listen to this story. Available for news subscribers. Continue reading the main story ADVERTISEMENT Continue reading the main story Need help? Review our newsletter help page or contact us for assistance. You received this message because you signed up for updates from The New York Times. To stop receiving From The Times, unsubscribe. To opt out of other promotional emails from The Times, including those regarding The Athletic, manage your email settings. To opt out of updates and offers sent from The Athletic, submit a request. Subscribe to The TimesGet The New York Times app Connect with us on: Change Your EmailPrivacy PolicyContact UsCalifornia Notices The New York Times Company. 620 Eighth Avenue New York, NY 10018