Flo Health said its new global study found mental health issues were 1.5 times more severe for perimenopausal women. The headline rests on a psychological domain score of 7.3 for perimenopausal women, compared with 4.8 for the premenopause group, a gap that points to a heavier emotional burden rather than a neat clinical threshold.
The numbers matter because they shift the frame of perimenopause away from flushes and bleeding changes alone. In Flo Health’s July 14 study announcement, researchers said they had surveyed 7,640 U.S. women aged 35 and older in a mixed-methods study and used an anonymous survey design. That earlier release said perimenopausal women experienced psychological symptoms more than 1.5 times more severely than premenopausal women worldwide, which gives the latest claim a clearer context: this is a company-run dataset, not a population-wide NHS audit, and it is being used to argue that mood and cognition belong at the centre of midlife care.
For UK practice, that is the relevant pressure point. NHS guidance already says perimenopause and menopause can affect relationships, social life, family life and work, and that looking after mental wellbeing can help with symptoms. The Menopause Charity lists anxiety, low mood, brain fog, memory and concentration problems, low energy, mood swings, panic attacks and low self-esteem among the changes people may experience. Those are the symptoms most likely to be missed when consultations focus only on hot flushes or periods.
Flo Health has been building this argument for months. On February 18, it said it had conducted a large international study with researchers at Mayo Clinic on how perimenopause presents. On May 14, it said 66% of women aged 38 to 50 felt better prepared for puberty than perimenopause, a blunt measure of how little preparation many women get before symptoms begin. Together, those releases point to a gap that sits in primary care, workplace support and digital triage alike: mood, sleep, concentration and anxiety are still being treated as side issues when they are often the main event.
For perimenopause services in the UK, the practical implication is simple. Any tool, pathway or app that stops at symptom logging is missing the core burden this study highlights. Mental health screening, clearer signposting and faster referral routes need to sit alongside hormone and bleeding discussions if midlife care is going to match the size of the problem.