The world's largest real-world study — across 11 countries, 8 health domains and 6 reproductive stages.
+58% The Hidden Reshaping Behind the Number
Visceral fat surges 58% across the transition — while total weight barely changes (+1.3 kg). Fat and muscle silently swap places without the scale showing it.
4× How Heart Health Converges
AFib prevalence quadruples from early reproductive years to late postmenopause. Arterial stiffness rises 27%. Women's cardiovascular profile progressively converges toward men's.
44.5% Women Discover It a Decade Too Late
Nearly half of women don't report perimenopause until age 50+ — even though measurable changes begin in their early 40s.
"Visibility is the first step to empowerment. When women can see what is changing, they can act earlier, advocate for themselves, and make informed decisions about their health."
Aline Criton - Head of Regulatory & Clinical Affairs, Withings