Menopause
Loneliness and social isolation linked to cognitive decline in perimenopause

Loneliness and social isolation were linked to subjective cognitive decline in perimenopause in a study of more than 900 women.
Perimenopause usually happens between 45 and 55 and is the stage before menopause, when ovarian function declines and oestrogen levels fluctuate.
Common physical symptoms include hot flushes and sleep disturbances, while emotional and cognitive changes can also affect memory, attention and processing speed.
The study aimed to identify high-risk groups for subjective cognitive decline in perimenopausal women using latent class analysis, a statistical method that groups people with similar characteristics, and to support healthy ageing through earlier identification and intervention.
Dr Stephanie Faubion, medical director for The Menopause Society, said: “The findings of this study highlight the importance of psychosocial factors in cognitive health during the menopause transition and may inform the development of multidimensional psychosocial interventions targeting persons at risk for subjective cognitive decline during this time.”
Researchers looked at how loneliness and social isolation, both separately and together, were linked to subjective cognitive decline in perimenopausal women.
Subjective cognitive decline is when someone notices their memory or thinking is getting worse.
In the study of more than 900 perimenopausal women, loneliness was defined as dissatisfaction with existing social relationships and a perceived lack of emotional connection.
Social isolation was defined as a more objective state, marked by a limited social network, infrequent social interactions and reduced social participation.
The researchers found that both factors were independently associated with subjective cognitive decline during perimenopause and that they also had a joint relationship.
Earlier studies have shown that loneliness and social isolation are both risk factors for a range of adverse health outcomes, including cognitive decline, cardiovascular disease and all-cause mortality.
But their specific role in perimenopausal women had been less clear.
Perimenopausal women may also face added pressures alongside fluctuating hormone levels, including children moving off to college, increased caring responsibilities for ageing parents and changing roles at work.
Menopause
More research needed to understand link between brain fog and menopause, expert says

Brain fog in menopause is common but still poorly understood, with researchers calling for more work to explain the link and how best to support women.
For a new perspective article published in The Lancet Obstetrics, Gynaecology, & Women’s Health, researchers based in the UK and Australia reviewed the evidence on menopause-related cognitive symptoms. They found that symptoms such as forgetfulness, reduced concentration and brain fog are common during the menopause transition, but are still poorly recognised and under-researched.
More than two-thirds of women report difficulties with memory or concentration over the menopause transition. Multiple factors may contribute to these cognitive symptoms, including hormonal changes, sleep disturbances and psychological and psychosocial stress. Yet, because cognitive symptoms are not widely discussed, they can cause considerable worry, with some fearing they are signs of dementia or undiagnosed neurodevelopmental conditions.
The review paper emphasises that overall cognitive performance for women experiencing menopause-related brain fog typically remains within expected ranges and, importantly, that cognitive symptoms are not linked to an increased risk of dementia.
Professor Aimee Spector of UCL Division of Psychology and Language Sciences, co-author on the paper, said: “Cognitive symptoms such as forgetfulness and ‘brain fog’ are incredibly common during menopause, yet they are often overlooked. Our findings highlight just how complex menopause-related cognitive symptoms are, and how much we still don’t know about what drives them. More targeted research is essential if we are to identify which biological, psychological or lifestyle factors contribute most, and what types of support or treatment are likely to be effective.”
The authors argue that clinicians can play a key role in understanding and validating women’s experiences by asking about the duration of cognitive symptoms, impacts on day-to-day functioning and any other medical or psychosocial factors that could be contributing to cognitive symptoms.
The review also discusses a range of approaches that may ease cognitive symptoms, such as improving sleep quality, engaging in regular aerobic exercise and eating a balanced diet. There is also little but promising research into the impact of psychological therapies targeting cognitive symptoms, with a recent meta-analysis of three cognitive behavioural therapy-based studies showing significant improvements in memory and concentration. The evidence is more mixed for the benefits of hormone therapy on cognitive symptoms during menopause.
The authors identify cognitive symptoms as a major area of unmet need in menopause research. They call for a unified definition of menopause-related cognitive changes and for prospective, longitudinal studies that can track women from pre- to post-menopause. Better understanding of the biological, psychological and social factors that contribute to cognitive symptoms will be crucial for developing effective treatments.
Lead researcher Dr Caroline Gurvich of Monash University said: “There’s a lot of pressure to use objective measures of cognitive decline, like a memory test, for example, in a clinical trial, but the key symptom of brain fog is a subjective experience. So having a definition that acknowledges the key cognitive symptom is critical.”
This is not without precedent – we already use subjective or self-report measures for depression, anxiety and other mental health conditions with great success.
Dr Gurvich said the proposed definition would also validate women’s individual experiences while empowering them through the reassurance that any objective decline in their cognitive ability is subtle.
She added: “This is a decrease in cognitive or learning efficiency, not functionality or capacity. For many women, the perception they are losing capacity is what drives them to stop work or lose the confidence to live fulfilling lives during and after menopause. I hear all the time from women who have gone through menopause that validation would have made a significant difference to their resilience and the approach they took to living with menopause.”
Co-author Professor Martha Hickey of the University of Melbourne and Royal Women’s Hospital said: “Our analysis of the best available research shows that many women experience some degree of cognitive symptoms, such as brain fog, during the menopause transition.”
“But there’s a lack of long-term data, which means that there’s a gap in our knowledge about how the brain fog symptom develops and changes from peri-menopause to after menopause ends. It’s a real gap in our understanding.”
Professor Spector added: “We increasingly see women, typically at the peak of their careers, losing confidence in the workplace, often translating to leaving work or reducing work hours. Having simple strategies to support and retain them at work is also a broader economic issue.”
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