Adolescent health
Grandfather’s chemical exposure may affect puberty timing

A grandfather’s contact with environmental chemicals could influence when his granddaughter starts her period, new research suggests.
Scientists found that exposure to certain chemicals in both parents—particularly fathers—was linked to earlier puberty onset in daughters and granddaughters, with the average age falling by one year between generations.
Researchers from Emory University’s Rollins School of Public Health analysed data from the Child Health and Development Studies, which has tracked families in the US since the 1960s.
The team examined blood samples from 249 couples, measuring thousands of small molecules and chemical profiles. These were linked to puberty onset in 247 daughters and 139 granddaughters born around 1990.
While the average age at first period remained the same between grandmothers and mothers, it dropped from 13 to 12 years in the granddaughters.
One chemical in particular—phenoxyethanol, a preservative used in personal care products and foods—was associated with earlier puberty, especially when both parents had similar exposure levels.
Xin Hu of Emory University’s Rollins School of Public Health in Atlanta said: “Girls are starting puberty earlier than ever before, which can raise their risk for health problems later in life.
“We wanted to explore why this might be happening by looking at how environmental exposures from grandparents can influence when girls get their first period.”
While maternal and paternal exposures both played a role, the father’s influence stood out.
Hu said: “While we found that both the mother’s and father’s exposures were linked to when their daughters and granddaughters began puberty, the father’s influence was surprisingly strong.
“Paternal exposure to environmental chemicals may play an unrecognised but critical role in shaping offspring endocrine health.”
Earlier puberty has been linked to increased risks of obesity, type 2 diabetes, certain cancers and depression, making these findings particularly significant.
In the US, the average age for a first period is now around 12, with some girls beginning as early as eight.
Adolescent health
WUKA brings Period-Positive Pool Party to London Aquatics Centre to keep girls swimming through puberty

This summer, WUKA and triple Olympian Hannah Miley MBE are bringing their Period-Positive Pool Party to London Aquatics Centre with one clear mission: to prove that periods should never keep anyone out of the water
At a time when 84 per cent of teenage girls in the UK say their interest in sport declines after starting their period – and nearly 70 per cent report skipping sports or swimming due to menstruation – WUKA’s immersive community event is tackling one of the most overlooked barriers to girls’ participation head-on.
WUKA’s Period-Positive Pool Party was created as a safe, inclusive space for teens to swim on their periods with confidence.
Following a series of sold-out events across the UK, including Eastleigh and Stonehaven in Hannah Miley’s hometown of Aberdeen, the London-based Olympic venue is a result of growing demand from teens and parents seeking supportive, stigma-free spaces to stay active during menstruation.
Why This Matters?
For many young people – particularly those who are not ready to use tampons due to age, comfort, cultural reasons, or parental guidance – swimming during their period can feel inaccessible.
WUKA’s period swimwear offers an alternative designed to provide comfort, coverage, and confidence, helping ensure that periods don’t mean sitting on the sidelines.
The new one-hour London takeover combines swimming, education, and empowerment in one of the UK’s most iconic sporting venues.
Breaking The Stigma While Making A Splash
So much more than a product event, WUKA’s Period-Positive Pool Party is a fully immersive experience featuring a DJ-approved summer playlist, inflatable pool installations, and professional underwater photography capturing barrier-free swimming moments. Every teen will also receive a curated £80 wellness goodie bag, including free WUKA swimwear.
But more than anything, they’re about freedom, confidence, and belonging, ensuring the confidence to swim, period, or not, continues long after they leave the water.
Hannah Miley MBE says: “Being an athlete taught me that your cycle isn’t a weakness, it’s just something to manage.
“Partnering with WUKA for this Pool Party is about showing young swimmers that with the right support and the right kit, they don’t have to press pause on their lives or their sport because of their period.”
WUKA Founder Ruby Raut says: “This is about more than a pool party – it’s about changing what inclusion in sport actually looks like.
“Too many girls step back from swimming and physical activity because of period stigma or lack of options.
“Through community-led events like this, we’re breaking barriers, building confidence, and making sure no one feels excluded from sport because of their cycle.”
Saturday 30th May 2026 | 5–6pm | London Aquatics Centre
Want to join the pool party? Follow this link to buy your tickets
Adolescent health
France to reimburse young women for cost of reusable period products
Adolescent health
Newly-launched Female Health Hub will support grassroots football players

A new Female Health Hub launched by the English FA will support women and girls in grassroots football in England with trusted advice on health issues affecting play.
The hub brings together expert-backed guidance, practical tools and player insights in one place, giving women and girls practical advice and reassurance on female health in football.
It has four core aims: to help women and girls better understand their bodies and how female health affects performance and participation, to educate players on key health topics and when to seek further advice or support, to provide practical strategies to help navigate common female health challenges, and to help break down taboos and normalise conversations around female health in football.
Users of the hub will also be able to hear directly from members of the England women’s national team, who share their own experiences of navigating female health matters while playing at the highest level of the game.
“Our ambition is to create a game where women and girls can thrive,” said Sue Day, the FA’s director of women’s football.
“To achieve that, it’s essential that players feel supported in environments that understand and respond to their female health needs.
“We’ve heard directly from grassroots players that they want better information and support around female health, but that they often don’t know where to find it.
“The launch of the Female Health Hub marks an important step in changing the landscape.
“We want every player to feel confident in her own skin and supported without judgment, so she can feel empowered by her body, rather than held back by it.”
The platform was launched following research conducted by the FA that highlighted the need for better education and support around female health in football.
According to the FA, 88 per cent of adult players surveyed said their menstrual cycle has an impact on their ability to train or play, but 86 per cent reported they had never received education about the menstrual cycle in relation to football performance and training.
The research also found 64 per cent of women experience issues related to sports bras or breast health while playing football, despite sports bras being considered one of the most important pieces of playing kit.
Players also expressed strong interest in learning more about injury prevention, at 87 per cent, nutrition, at 84 per cent, and mental health, at 77 per cent, in relation to female health.
The first phase of the Female Health Hub focuses on three of the most requested topics: menstrual health, breast health and injury resilience, with further content to follow, including nutrition and pelvic health guidance.
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