menarche Archives - Net Health Book

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Thank you for your trust in the past. Ray Schilling, MD

**Closure of my websites askdrray.com and nethealthbook.com**

These websites will be taken down on **April 30, 2025** and no further updates will be provided.
I hope you enjoyed the content of these websites. You can continue to read Dr. Schilling’s blogs which I publish daily on Quora

My home page there is: ** https://www.quora.com/profile/Ray-Schilling**

Click on this: Under my image there is a heading “Profile”. Right underneath this you find a search box entitled “search content”. Type in any term you are interested in. You will get several answers I have written (I have written more than 15,000 answers).

On Quora you can also write comments that I will answer.

Thank you for your trust in the past. Ray Schilling, MD

Advertisement

Girls Are Getting Their First Period Earlier

A new study shows that girls are getting their first period earlier than in previous centuries. The first period has the name menarche. The study in JAMA Network Open also noted that it takes longer for girls to develop regular periods. The data is based on 71,341 US female individual

August 21, 2024

by Ray Schilling

body mass index, endocrine-disrupting chemicals, estrogen, first period, increased sugar intake, menarche, menstrual cycles, progesterone, racial differences, regular periods

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