📉 A trend confirmed by science
A meta-analysis of over 71,000 American women born between 1950 and 2005 reveals that the average age of first menstruation has decreased from 12.5 to 11.9 years for the most recent generations. Today, nearly 16% of girls experience menarche before age 11, and some even as early as 9 years old or younger.
🧬 Medium and long-term risks
A Brazilian study presented at the Endocrine Society in 2025 shows that women who started menstruating before age 10 have an increased risk of obesity, diabetes, hypertension, cardiovascular diseases, and obstetric complications such as pre-eclampsia. Those with late menarche (>15 years) have a lower risk of obesity but experience irregular cycles and increased cardiac fragility.
Why this trend is concerning: nutrition, environment, and hormones
Early puberty, primarily linked to high BMI, inflammatory diet, or exposure to endocrine disruptors, is becoming increasingly common.
According to the study, the decrease in the age of menarche is correlated with a rich and unbalanced diet from childhood. A better diet seems to delay menarche, which helps limit risk factors. Among the suspected causes are also early exposure to endocrine disruptors (pesticides, plastics, hormonal pollutants) that promote early puberty. These environmental and nutritional factors increase health risks later in life, highlighting the importance of acting from childhood.
🤝 Sherydane's commitment to these issues
At Sherydane, we believe it's essential to offer young girls natural, healthy, and certified protection from the beginning of their menstrual lives.
Our commitments:
🌿 Organic menstrual panties, OEKO-TEX certified, free of toxic substances, endocrine disruptors, silver nanoparticles, and PFAS, ecological and sustainable. 👉 Discover Sherydane organic menstrual panties designed to respect the body and the planet.
❇️ Awareness actions on nutrition, endocrine disruptors, and the impact of the environment on menstrual health. 👉 Discover the foods to prioritize during your period. 👉 Read the article Cravings before periods: why do we feel hungrier before menstruation?
🤲 Kind support to accompany first periods in a healthy and serene way. Our monthly workshops are designed to help young girls grow in confidence with their cycle, while taking care of their health. 👉 Discover Sherydane menstrual workshops
✅ Why act now?
- Early puberty is a health marker to monitor from childhood.
- Appropriate protection from the first period helps establish a positive relationship with the body, without irritants or toxic products.
- Early menstrual education can prevent complications and support respectful overall development.
Science today provides solid evidence: first periods before age 10 are not just a number, but a signal to be taken seriously for long-term health. Sherydane is here to offer an ethical, ecological, and healthy solution, so that every young girl can experience this transition with confidence, respect for her body, and respect for the planet.
By better understanding this health data, we can act today to prevent risks later. With Sherydane, every girl can experience her menstrual transition with confidence. 👉 Discover the complete guide to periods: understanding your menstrual cycle