NewsMakers
Positive life outlook may protect against middle-aged memory loss, 16-year study suggests
Those who said they had higher wellbeing were more likely to subsequently have better scores on memory tests.
Higher levels of wellbeing may help reduce the risk of memory loss in middle age, suggests new research, which tracked more than 10,000 over 50-year-olds across a 16-year span.
Findings that are published in the peer-reviewed journal Aging & Mental Health found those who said they had higher wellbeing were more likely to subsequently have better scores on memory tests.
These people – all of whom were determined as having ‘healthy brains’ – also reported a greater sense of control, independence, and freedom to make choices.
This association between psychological wellbeing and better recall was small but significant. The link was also independent of depressive symptoms, according to the researchers.
However, the analysis by a cohort of 15 experts across the UK, US and Spain found no evidence to suggest better memory was linked with later higher wellbeing, although the authors say the possibility cannot be discounted.
The academics add that the results highlight that psychological and social factors affect brain health, and wellbeing may protect against cognitive impairment. Interventions to promote psychological wellbeing such as mindfulness could maintain mental functions such as memory as people age.
“In the context of an ageing population, understanding factors that may protect and maintain healthy cognitive function is critical for enhanced population health and health policy development,” explains lead author Dr Amber John, a Lecturer in Psychology at the University of Liverpool and a current Alzheimer’s Research UK Fellow, who specialises in research on ageing, with a specific focus on mental health, neurodivergence, and dementia.
“While, in this research, we can’t examine and understand the relationship between causes and effects, determining if one event leads to another (causality), our findings are important in proposing that good wellbeing predates better memory rather than vice versa. This suggests that the link between wellbeing and memory is not just because people with poor memory have poor wellbeing and that, if causality is demonstrated, improving wellbeing could protect against subsequent memory decline.”
Co-author Joshua Stott, a Professor of Ageing and Clinical Psychology at UCL, adds: “This study represents an important step toward understanding the interplay between wellbeing and memory over time. It offers new insights into how self-rated wellbeing is associated with memory and vice versa.
“While our findings are preliminary, they highlight the importance of considering psychosocial influences on brain health such as memory.”
Depression and anxiety are widely recognised as risk factors in faster decline of brain health and dementia. A key global healthcare priority is now to prevent dementia.
Wellbeing is defined as emotional health combined with being able to function effectively. Happiness, confidence, a sense of purpose and control over life are among the elements of wellbeing.
Existing studies have suggested a positive link between wellbeing, age-related decline in mental processes in the brain, and mild impairment of these functions. Memory is regarded as a cornerstone of an individual’s mental processes.
However, most studies have only tested this link between wellbeing and memory in one direction or another. The aim of this research was to provide longer-term insights into the relationship between wellbeing and memory in people who have yet to experience significant cognitive decline.
Data was based on 10,760 men and women who took part in the English Longitudinal Study of Ageing Self-reported. This existing long-term research project involves UK adults over the age of 50 and includes attitudes to well-being.
Participants were assessed on wellbeing and memory every two years – a total of nine times during the 16-year study period stretching back to 2002.
Researchers used a learning task to check participants’ ability to recall ten words immediately and after a delay. Wellbeing was assessed using a quality-of-life questionnaire. Participants scored themselves based on satisfaction of specific needs – pleasure, control, autonomy, and self-realisation. Questions included ‘I can do the things that I want to do’, and ‘I feel that life is full of opportunities’.
The authors excluded anyone with a dementia diagnosis at the start of the study.
Results showed a small but significant association between higher wellbeing and better memory. In addition, the study found that the impact of wellbeing on memory was significant even after adjusting for depression. The authors say this suggests links between wellbeing and memory exist independent from depressive symptoms.
Biological factors such as cardiovascular disease and those linked to lifestyle – such as physical activities – are among possible reasons for the effect of wellbeing on memory, say the authors. Age, gender, lifestyle, and socioeconomic status may also have a negative or positive impact on the relationship between wellbeing and memory function.
Despite the lack of evidence for memory affecting wellbeing, the authors say this cannot be ruled out. They say lower psychological wellbeing may be a sign of ‘oncoming cognitive impairment’ before symptoms become apparent.
The research was funded by Alzheimer’s Research UK; Medical Research Council (a part of UKRI); National Institute on Aging; and National Institute for Health and Care Research (NIHR).
Emma Taylor, Information Services Manager at Alzheimer’s Research UK, comments: “Loving your heart, staying sharp and keeping connected are key to protecting our brain health as we age.
“There are 14 established health and lifestyle risk factors for dementia, including lack of physical exercise, social isolation, and depression, which are linked to wellbeing.
“This study found that people over 50 who reported they felt happier and more fulfilled in life had a better memory over time. However, this research is observational – and more work is needed to understand how a positive wellbeing and memory are connected and whether this has a knock-on effect on dementia risk.
“Looking after our mental wellbeing plays an important part in our overall health. And it’s never too late to start taking steps to keep our brains healthy throughout our lives and lessen the devastating impact of dementia.”
As with all long running longitudinal studies, one limitation of this paper is sample attrition over the follow-up period. However, the team used a research methodology which enabled use of use of all available information in the observed data, without imputation or discarding cases.
To conclude, authors say their results could provide the basis for further research into what factors can enhance brain health in aging populations.
Co-author Dr Emily Willroth, an Assistant Professor of Psychological & Brain Sciences at Washington University, in St Louis, Missouri, adds: “Going forwards it would be fantastic if this research can build on the foundations of ongoing memory research to potentially inform strategies supporting cognitive health in ageing populations – that is the aim.”
NewsMakers
Heart disease risk may start in the womb, study finds
Young adults whose mothers had high blood pressure during pregnancy — either pregnancy-associated hypertension, pre-eclampsia or eclampsia — had more signs of early arterial injury, higher blood pressure, higher body mass index and higher blood sugar than peers.
A child’s future heart health may be partially shaped before they are born, reports a new Northwestern Medicine study that found pregnancy complications are linked to poorer cardiovascular health in offspring more than 20 years later.
The study found that young adults whose mothers had high blood pressure during pregnancy — either pregnancy-associated hypertension, pre-eclampsia or eclampsia — had more signs of early arterial injury, higher blood pressure, higher body mass index and higher blood sugar than peers.
The authors said the study adds to growing evidence that cardiovascular risk may be transmitted across generations through a combination of biological, environmental and behavioral factors.
“That means we must make sure people maintain good health from childhood into young adulthood, so that if or when someone becomes a parent, they pass on the best opportunity for good health to their children,” said study senior author Dr. Nilay Shah, assistant professor of medicine in the division of cardiology at Northwestern University Feinberg School of Medicine.
How the study was conducted
Shah and colleagues evaluated nearly 1,350 mother-child pairs from the Future of Families and Child Well-Being Study, which enrolled mothers and children at birth between 1998 and 2000 across 20 U.S. cities. The children were then followed into adulthood.
Using delivery hospitalization records, the Northwestern scientists first identified whether mothers experienced pregnancy complications, including high blood pressure during pregnancy, gestational diabetes (high blood sugar during pregnancy) or preterm birth (before 37 weeks of pregnancy).
The three pregnancy complications are on the rise, and affect almost one in four pregnancies in the U.S.
The research team then analyzed cardiovascular health of offspring at age 22, using blood pressure measurements, blood testing, body mass index assessments and carotid artery ultrasounds to look for signs of artery injury.
Finally, the scientists compared participants with and without exposure to each pregnancy complication and adjusted for factors like income, education, difference in birth weight and smoking during pregnancy.
Key findings
At around age 22, participants whose mothers had high blood pressure during pregnancy had:
- Higher body mass index (+2.8 BMI points)
- Higher diastolic blood pressure (+2.3 mm Hg)
- Higher blood sugar levels (+0.2% HbA1c)
- Thicker artery walls (~0.02 mm)
While the difference in artery wall thickness may seem small, the study authors said it corresponds to roughly three to five years of additional vascular aging. That means arteries looked older and less healthy than expected, which raises the risk of future heart disease.
Other pregnancy complications also showed some long-term effect:
- Exposure to gestational diabetes was linked to worse blood pressure and some evidence of artery thickening
- Being born preterm was associated with higher blood sugar levels
‘Most heart disease is preventable’
With pregnancy complications on the rise in the U.S., Shah said the study provides compelling evidence that improving health before and during pregnancy could help reduce heart disease risk in the next generation.
“There is evidence that both parents’ health at the time of conception and during pregnancy influences a child’s health,” he said. “So, promoting health from an early age, like exercising regularly, eating healthfully, never smoking and getting enough sleep, is not just meant for an individual, but doing so may help future generations be healthier, too.”
Shah also emphasizes that risk is not destiny.
“The good news is that most heart disease is preventable,” he said. “If you experienced high blood pressure or high blood sugar during pregnancy, or your child was born early, it does not absolutely mean that your child will have worse health as adults. But I would encourage you to pay attention now to your child’s health behaviors.
“What children learn in childhood sets the stage for their health across their lives. If you are wondering whether your children’s behaviors are healthy, or are considering making a change, please speak with your child’s pediatrician for advice and guidance.”
Other Northwestern co-authors include Emily Lam, Abigail Gauen, Dr. Sadiya Khan, Alexa Freedman and Norrina Allen.
NewsMakers
Viagra could hold key to halting Peyronie’s disease
Combining two widely prescribed drug classes could provide the first effective treatment for early-stage Peyronie’s disease.
Combining two widely prescribed drug classes could provide the first effective treatment for early-stage Peyronie’s disease, according to a study published in The Journal of Sexual Medicine.
Peyronie’s disease (PD) is caused by the development of fibrotic scar tissue within the penis, leading to pain, curvature, sexual dysfunction and, in many cases, significant psychological distress. It affects an estimated 10 per cent of men during their lifetime, but despite its prevalence, treatment options are limited, particularly in the early phase of the condition.
The study, carried out by Anglia Ruskin University (ARU) and University College London Hospital (UCLH), found that combining phosphodiesterase type 5 (PDE5) inhibitors such as sildenafil (Viagra) and tadalafil (Cialis) with selective oestrogen receptor modulators (SERMs), including tamoxifen, may slow or even stop disease progression when given early.
The clinical study, carried out by Professor David Ralph of UCLH, evaluated outcomes in 133 men diagnosed with acute Peyronie’s disease who were treated with the drug combination for three months. Their results were compared with a smaller group of patients receiving standard care, which included giving vitamin E or no treatment at all. Standard care did not include surgery.
The study found 43 per cent of patients on the combination experienced an improvement in penile curvature, almost three times higher than in the standard‑care group (15 per cent).
At the start of treatment, 65 per cent of patients in the combination group reported pain during erections. After three months, that figure had fallen to just 1.5 per cent. By comparison, pain prevalence in the standard‑care group fell from 50 per cent to 27 per cent.
The clinical findings build on earlier laboratory work led by Professor Selim Cellek at ARU’s Fibrosis Research Group. Over the course of several years, Professor Cellek’s team screened 1,953 FDA‑approved drugs to identify compounds capable of blocking the transformation of fibroblasts into myofibroblasts, the key cells responsible for fibrosis. PDE5 inhibitors and SERMs emerged as particularly effective, and when used together demonstrated an effect greater than either drug alone.
Currently, there are no approved oral therapies proven to prevent early disease progression, forcing patients in the acute phase to wait until the condition stabilises before they can be offered treatments including injections or surgery.
Professor Cellek said: “Positive findings from this pilot clinical study validate our drug‑screening approach in the lab. It shows how repurposing well‑known medicines can accelerate progress in areas of unmet clinical need.
“Because both PDE5 inhibitors and SERMs are already widely used in clinical practice and have established safety profiles, the approach could be readily adoptable if confirmed in larger studies.
“These results suggest that early intervention targeting fibrosis could change how we treat Peyronie’s disease. Repurposing existing drugs may allow us to move from managing symptoms to modifying the disease itself.”
Professor David Ralph, Professor of Urology at UCLH, said: “This paper confirms the basic science research with regards to halting the progression of Peyronie’s disease. In previous papers we have noted that tamoxifen and PDE5 inhibitors inhibit the transformation of fibroblasts into myofibroblasts and therefore contraction of the plaque.
“This has now been put into clinical practice where this paper shows that when tamoxifen and a PDE5 inhibitor are combined, there is statistically less progression of the disease and improvement in curvature compared to the control arm. This is where from bench to clinical practice prevails and hopefully now a prospective clinical trial can be initiated.”
NewsMakers
Healthier brains may be more resilient to early Alzheimer’s disease
Maintaining good overall brain health may help reduce the impact of Alzheimer’s‑related changes on cognitive function.
A healthy brain may help protect thinking and memory skills from the early effects of Alzheimer’s disease, a new study has found.
Dementia is currently the leading cause of death in Australia and Alzheimer’s disease is its most common form — accounting for more than 70% of cases.
Alzheimer’s is a progressive brain disease in which cognitive abilities gradually decline, leading to impaired memory and thinking skills.
However, some people maintain high levels of cognitive function even though their brains show early signs of the disease. Specifically, some older adults have Alzheimer’s‑related brain pathology, but no noticeable cognitive problems.
The study, Cognitive and Brain Reserve as Modifiers of Early Alzheimer Disease–Related Cognitive Vulnerability, was a collaboration between Murdoch University and AdventHealth, and investigated why some people remain cognitively healthy despite early Alzheimer’s‑related brain changes.
“Our study looked at why some brains were more resilient than others, and whether factors such as peoples’ education, socioeconomic status and health of their brain made a difference,” said lead author Dr Kelsey Sewell, from Murdoch University’s School of Allied Health.
“Understanding these protective factors could help us develop earlier and more targeted strategies to minimise the effects of the disease on memory and thinking skills,” she said.
The research team analysed data from more than 600 older adults in the United States aged 65 to 80, who were living independently and had no signs of dementia or memory impairment.
They used blood tests and MRI scans to assess early Alzheimer’s‑related changes and overall brain health, examined life and social factors such as years of education, income, savings and financial security, and conducted cognitive tests measuring memory, attention, processing speed, working memory and executive function.
“Our main finding was that maintaining good overall brain health may help reduce the impact of Alzheimer’s‑related changes on cognitive function,” Dr Sewell said.
“We also observed early evidence that people with a higher socioeconomic status may be less affected by Alzheimer’s-related changes when it comes to memory, although more research is needed to confirm this relationship.”
Dr Sewell said the main takeaway for the public was to do everything you can to maintain a healthy brain.
“Things like exercise, maintaining a healthy diet, sleeping well, and finding new cognitive challenges can help to maintain a healthy brain. It is never too late, or too early to start,” she said .
“These results underscore the need for coordinated action across research, policy, and industry to design environments that support healthier choices and promote brain health at a population level.”
The data collection for this study was led by researchers at AdventHealth in Orlando, Florida.
The paper, Cognitive and Brain Reserve as Modifiers of Early Alzheimer Disease–Related Cognitive Vulnerability, was published in the journal Neurology.
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