Weekly Neuroscience Update

Schematic representation of the social perception and ventral face perception pathways in the brain.
Credit: Imaging Neuroscience (2026).

Newborn babies are naturally drawn to faces, a trait that helps them bond with their mothers and other caregivers. New Yale research has now found that the functional brain network involved in processing dynamic faces in adults can be observed as early as the third trimester of pregnancy.

Researchers have developed an AI model that analyzes a person’s DNA to better identify genetic risk factors for stroke, paving the way for more personalized risk assessments.

A new study published in the American Journal of Psychiatry found that deep brain stimulation (DBS) for treatment-resistant depression led to sustained improvement by stimulating specific brain connections. It is the largest multicohort study on patients receiving subcallosal cingulate DBS. Additionally, findings reported in Imaging Neuroscience indicate that the brain pathway for perceiving socially engaging faces can be detected in the womb, highlighting early brain network development.

Therapy targeting the immune system’s B cells might offer better odds against relapses in the early stages of multiple sclerosis (MS), a new study reports. The findings were published in the journal Neurology Open Access.

Adults who averaged fewer than 5,000 steps a day were later diagnosed with dementia, Parkinson’s disease or stroke at almost twice the rate of those averaging more than 12,000 steps, according to a new study presented at the 151st Annual Meeting of the American Neurological Association (ANA).

Children consuming more ultraprocessed foods exhibit heightened brain responses to appealing food images, which are associated with increased body fat a year later.

Previous studies have suggested that body posture and movement can influence emotions. Now researchers have extended this line of research by showing that when people perform the same “depressed” body movements, their brain responses differ depending on the level of their depressive symptoms.

Clinician-scientists hope to expand the use of blood-based biomarker tests for traumatic brain injury (TBI) to improve identification and escalation of care for patients whose diagnosis otherwise might be missed.

In a recent study, researchers investigated the impact of maintaining physical activity and blood pressure on cognitive abilities over a 14-year period. They tracked participants’ daily step counts and blood pressure, followed by computerized tests assessing attention, focus, and self-control. Results indicated that increased daily steps correlated with improved performance in cognitive tests.

A major review of more than 2 million people has found current smokers face a higher risk of dementia.

Researchers at Karolinska Institutet and their collaborators have identified two previously unknown forms of the protein amyloid-beta that may contribute to the development of Alzheimer’s. The study, published in Nature Communications, also shows that a protein previously discovered by the researchers can counteract the formation of these harmful forms, suggesting a potential new treatment approach.

Scientists have discovered that serotonin, a brain chemical best known for its role in mood and mental health, also helps regulate attention.

Three distinct brain biotypes exist in children who have attention-deficit/hyperactivity disorder, anxiety disorder or both, a new Stanford Medicine–led study has shown. The discovery could help clarify a confusing picture of two of the most common mental health conditions of childhood, which often overlap. Each biotype is characterized by malfunctions in a specific set of brain circuits, according to the study, published in Nature Mental Health.

A naturally occurring molecule that helps the brain clear away damaged blood cells could open the door to new treatments for one of the deadliest forms of stroke, research led by University of Manchester scientists suggests.

A study of more than 1,800 older Australians found that people who had experienced lifetime trauma were more likely to have mild cognitive impairment (MCI) or dementia and performed worse on working memory and executive function tests. However, stressful events experienced in the previous six months were not associated with poorer cognitive outcomes.

A recent review has revealed type 2 diabetes significantly raises the risk of developing Alzheimer’s disease.

Weekly Neuroscience Update

Cardiometabolic disease and cognition. Credit: Science (2026)

Drugs such as semaglutide and tirzepatide are already used to treat obesity and type 2 diabetes, but they also influence biological processes important for brain function. In a new review published in Science, researchers at the University of Gothenburg and the University of Copenhagen assessed the available evidence.

Scientists may have discovered a new strategy for treating complex neurodegenerative diseases. A study, recently published in Science, describes a new approach that allows specialized enzymes to clear out several disease-causing proteins.

In a neuroimaging study a team of researchers recorded the brain activity of healthy adults during sentence comprehension after raising catecholamine levels with stimulant medication (methylphenidate). Higher catecholamine levels led to stronger recruitment of cognitive resources during processing of grammatically ambiguous sentences, showing how neurochemical systems may shape language processing.

The brain’s own clearance mechanisms are most active during sleep. Researchers have now shown that this natural clearance process can also be enhanced while people are awake.

Researchers have identified 10 blood proteins that, when analyzed together, can distinguish people with amyotrophic lateral sclerosis (ALS) from healthy individuals with nearly 98% balanced accuracy. The findings, published in Nature Communications, could pave the way for a blood test that helps doctors recognize ALS earlier.

A new study is shedding light on how changes associated with different neurodegenerative diseases can overlap in the brain—and how that overlap may differ between women and men.

Researchers have developed an artificial intelligence (AI) model that helps fill gaps in brain wiring maps made with diffusion MRI, a type of scan that traces the brain’s nerve fiber pathways. This could help researchers study how key brain connections change with aging and disease.

Firing patterns in the brains of some cognitively normal adults predicted Alzheimer’s years before symptoms or brain changes, while other patterns indicated resilience to cognitive decline and potential “super ager” status.

Exposure to petroleum-derived lubricants at work, including engine oil, hydraulic oil and cutting fluids used to cool or lubricate metal during metalworking, is associated with higher odds of multiple sclerosis (MS), according to a study published in Neurology. The study does not prove that exposure to these lubricants causes MS. It only shows an association.

Patients with early-onset Alzheimer’s have more extensive tau deposits that accumulate more than twice as quickly and spread more widely throughout the brain than in older-onset patients.

Researchers have helped accelerate the search for disease-causing genes by building new genetic ‘families.’ The team uncovered hundreds of previously unrecognized family connections by analyzing the DNA of people with frontotemporal dementia (FTD) and motor neuron disease (MND).

People with type 2 diabetes, heart disease or stroke who sleep well have better cognitive function and greater brain volume than people with the same conditions who sleep poorly, according to a new study.

Recent findings published in the Journal of Clinical Investigation, links specific brain abnormalities in pulmonary hypertension to the same inflammatory processes that drive the disease in the lungs and heart, suggesting that cognitive decline may be present in other vascular and inflammatory conditions beyond pulmonary hypertension. The findings also point to a biological marker that could be used to screen people for future cognitive issues.

Scientists have developed an artificial intelligence model to streamline and improve screening for Parkinson’s disease (PD) so doctors can refer patients for early-stage testing.

Weekly Neuroscience Update

Children with more autistic traits favored a brain activity pattern tied to sight and movement (left) before age 9 and one tied to social and emotional processing (right) after 14, suggesting interventions could be tailored by age. Credit: OCEAN Labs

Children with more autistic traits view and experience the world differently than their peers do, and those differences change as the children grow, according to a new study published in the American Journal of Psychiatry.

Insomnia is associated with a 26% higher risk of stroke and 28% higher odds of hospital admission, according to new research in Sleep Medicine Reviews. The researchers say the findings support recognizing insomnia as an important marker of brain, mental and general health.

Adults in their 60s who scored lower on tests of overall thinking ability, memory and how quickly they processed information were more likely to have a stroke years later, according to new research conducted in Sweden.

A well-known brain-healthy diet may help ward off cognitive decline and dementia by protecting arteries, a new study suggests. People who followed the MIND diet had healthier blood vessels in their brains, which was associated with larger brains and better cognitive function, researchers report in the journal Alzheimer’s & Dementia.

Adults with hard-to-treat epilepsy who used cannabis most days had more than twice as many convulsive seizures per year and became resistant to antiseizure medications more quickly than nonusers, according to new research.

A new study reveals that the brain uses shared neural codes for speaking and listening during short verbal exchanges, but relies on distinct timing networks to process longer, overarching ideas. These findings, published in Nature Human Behaviour, help map how the brain navigates the back-and-forth demands of natural social interaction.

Low-dose aspirin was associated with a 70% lower risk of dementia among older people with a particular genetic profile, a new Monash University analysis has found, raising the possibility of a more personalized approach to dementia prevention.

A study published  in Science Advances reveals that machine-learning models analysing speech can estimate chronological age and provide insights into brain and biological aging, cognitive health, and dementia. The “speech clock” developed in the study predicts age based on acoustic and linguistic features, with the difference between actual age and predicted age linked to various markers of cognitive and brain health.

Engineers created a smart shoe that analyzes walking patterns, potentially aiding in the monitoring of movement disorders, with the prototype achieving 95.4% accuracy in tracking steps and estimating calories burned.

A new study published in Brain Communications found that a transcranial low-amplitude magnetic field intervention delivered twice weekly into the brain through a noninvasive headset was associated with improvements in several measures of cognitive function and emotional well-being in people experiencing cognitive impairment associated with long COVID.

Researchers have discovered how a metabolite produced by gut bacteria can influence brain damage after stroke. Their paper is published in the journal Cell.

Weekly Neuroscience Update

Cinematic neuroscience laboratory with illuminated brain scan

A new study by neuroscientists at MIT’s Picower Institute for Learning and Memory shows how the brain encodes information throughout the decision-making process to keep options clearly in mind and ensure that chosen and unchosen options are remembered.

A clinical trial has shows that high-frequency spinal cord stimulation can reduce pain and improve sensory function in people with treatment-resistant diabetic neuropathy.

Education, intellectually stimulating work and an active lifestyle help preserve cognitive abilities in adults over 65 and lead to more effective verbal expression and stronger cognitive performance. But there is another important factor: emotions. The way we recognize and interpret them can significantly influence the efficiency of cognitive processes as we age.

A new UCLA study has found a connection between how quickly the brain ages and the bacteria and chemical byproducts found in the gut, offering a clue to what drives brain aging long before symptoms appear.

Scientists have identified over 830,000 brain immune cells, including a protective subtype of microglia that increases during Alzheimer’s disease. These cells, influenced by the TREM2 pathway, assist in removing harmful substances from the brain, offering a new approach for therapies that aim to enhance the brain’s innate immune defences instead of just targeting amyloid plaques.

A recent study suggests that slow electrical rhythms traveling along individual nerve fibres may do more than reflect brain activity: They may help coordinate communication between key memory centres in the hippocampus.

New research from Carnegie Mellon University reveals that dendritic spines—the tiny structures that help brain cells communicate and form memories—don’t fit neatly into a few categories. Instead, they display a continuous range of shapes, offering new insight into learning, development and neurological disease.

People living with a severe form of asthma show subtle differences in the structure of their brains compared with people whose asthma is well controlled, according to new research presented at the European Respiratory Society Congress.

Researchers have discovered that sitting on Japanese Igusa mats, made from rush grass, enhance concentration and engagement in the brain while reducing tension and anxiety in users. With centuries of use in Japan, the research aims to validate its health benefits and highlight the value of this traditional material.

New research indicates that people with invasive cancer face an elevated risk of experiencing a stroke, especially in the first few months after diagnosis and if they have certain types of cancer. The findings are published in Cancer.

A recent study compared eye-tracking data from 368 adult readers with predictions from over 400 neural network models, revealing that large language models (LLMs) struggle to predict human cognitive challenges in contextualizing words, despite being accurate in word recognition speed.

Researchers have found a method to predict the onset of symptoms in individuals at high risk for Alzheimer’s, aiding physicians in determining the appropriate timing for preventive treatments.

A study of more than half a million adults has found that higher levels of exhaled carbon monoxide were associated with a lower risk of Parkinson’s disease. The findings, published in JAMA Neurology, uncover a possible new explanation for the consistently lower rates of Parkinson’s among smokers that have long puzzled scientists.

Weekly Neuroscience Update

Regional overlap between dimensional associations between conduct problems and brain structure (current study) and case-control differences in conduct disorder. Credit: Journal of the American Academy of Child & Adolescent Psychiatry (2026).

Conduct problems—including persistent rule-breaking, aggression, irritability and difficulty following school rules—are associated with small but widespread differences in brain structure, according to a major international study of more than 14,000 children and adolescents.

New research has discovered subtle but widespread differences in the brain’s communication networks in people with bipolar disorder, offering new insight into how illness severity and treatment may relate to brain wiring.

A recent study has identified hidden pathways through which parental DNA influences a child’s life, presenting a framework that separates direct genetic inheritance from parents’ environmental impacts, known as “genetic nurture.” By analysing data from over 30,000 multigenerational families, researchers found that the domestic environment shaped by parental DNA can affect traits such as height, weight, and academic ability that rival direct inheritance.

A study of 2,044 older Japanese adults revealed that lower vitamin C levels in blood plasma are associated with reduced gray matter volume and connectivity in the brain’s default mode network.

Researchers have discovered unique brain activity patterns in individuals with depression, shedding light on the persistent nature of depressive symptoms. Their study, used advanced neuroimaging and mathematical modelling to analyse brain transitions between states, indicating that depression may involve “brain-state entrapment,” whereby the brain tends to favour certain activity patterns and struggles to shift away from them.

Adolescents who spend at least two hours a day on social media are more likely to experience depressive symptoms and poorer well-being, with the strongest effects in early adolescence, according to new research.

A new study challenges the belief that teenage risk-taking is due to excess dopamine, finding instead that it stems from low baseline dopamine levels. Analysing data from over 800 adolescents, researchers discovered that those with the lowest reward biology use substances like alcohol and cannabis as a way to stimulate their underactive brains. As their dopamine systems mature into adulthood, their experimentation with substances significantly decreases.

New research suggests that reinforcing the body’s natural daily rhythms to improve sleep could help the brain recover after a stroke.

Weekly Neuroscience Update

Credit: Biological Psychiatry (2026). DOI: 10.1016/j.biopsych.2026.03.002

A longitudinal study tracking children over a period of seven years has identified distinct brain-wave patterns emerging from age 9 that can forecast a child’s vulnerability to anxiety or depression by age 13. These predictive markers reveal divergent, hemisphere-specific neurodevelopmental trajectories. Anxiety is linked to activity on the right side of the brain, while depression is tied to the left.

Researchers developed transparent, flexible contact lenses that use electrical stimulation to treat depression, enhancing brain connectivity and increasing serotonin levels by 47%, comparable to top antidepressants.

A Phase 2 clinical trial found that a single 25 mg dose of psilocybin, alongside psychotherapeutic support, significantly reduces symptoms of recurrent depression, with antidepressant effects appearing by day two and 53% of participants reaching remission by six weeks. While well-tolerated, the study identified long-term efficacy issues and the challenge of patient blinding in psychedelic research.

A new study maps the functional remodelling strategies the brain deploys during simulated visual impairment.

Researchers are developing a multi-organ “organ-on-chip” device called the GlucoBrain project to connect human cellular models of the gut, pancreas, and brain in a biochip. This study will investigate the biological mechanisms linking diabetes to cognitive decline and Alzheimer’s by monitoring molecular signaling and cellular responses to glucose and hormone levels.

A healthy brain may help protect thinking and memory skills from the early effects of Alzheimer’s disease, a new study has found.

A major longitudinal cohort study revealed a compelling neuroprotective link between smoking cessation and a lowered risk of developing dementia. While the study does not definitively prove causation, the empirical data shows that individuals who quit smoking experience a 16% reduction in dementia risk compared to those who continue smoking, eventually matching the baseline risk levels of lifelong non-smokers after approximately seven years.

Researchers are investigating whether existing dementia assessment methods may overlook signs of cognitive decline in autistic adults because many screening tools were developed around neurotypical populations.

A multi-site study reveals that combining cannabis and tobacco, a trend known as “co-use”, significantly increases the long-term risk of developing full psychotic disorders like schizophrenia. The study tracked over 1,000 participants from the North American Prodrome Longitudinal Study, specifically focusing on adolescents and young adults already at “clinical high risk” for psychosis.

A new study reveals that long-term exposure to low levels of air pollution is directly linked to worse memory, comprehension, and processing speed.

A milestone pilot randomized controlled clinical trial delivered the first targeted clinical evidence that immunotherapy could serve as a powerful new treatment paradigm for treatment-resistant depression. The study investigated whether tocilizumab, an existing anti-inflammatory drug traditionally used to treat autoimmune conditions like rheumatoid arthritis, could alleviate depressive symptoms by blocking a specific inflammatory pathway.

Migraine with aura is linked to a higher risk of ischemic stroke in middle-aged and older individuals, as per a study in Neurology, while migraine without aura does not show this association; however, the study does not confirm causation.

New research argues that Spinal Cord Injury (SCI) must be reframed from a simple disruption of motor pathways into a fundamental systems-level disorder. The framework posits that SCI permanently fractures communication, desynchronizes physiological states, and halts learning across the entire brain–body–environment loop.

Finally, a new study has created a real-time method to detect alcohol-induced blackouts during drinking, tackling the challenge of identifying blackouts only after harmful incidents occur.

Weekly Neuroscience Update

Alterations within the central nervous system in painful diabetic peripheral neuropathy. Credit: Journal of Diabetes (2026). 

Changes within the central nervous system, including the brain and spinal cord, can be a key reason for pain in people with diabetes, and future treatments could focus on restoring the brain’s pain-blocking systems, according to new research.

A long-term MRI study reveals that lower abdominal fat accumulation is linked to slower brain atrophy, preserved brain structures, and improved cognitive performance in late midlife, regardless of weight loss. This relationship appears to be mainly influenced by glucose control and insulin sensitivity. The study uniquely connects repeated MRI observations of visceral fat with brain aging and cognitive changes over time.

Researchers have shown that a single dose of psilocybin, the psychedelic compound found in magic mushrooms, causes likely anatomical brain changes that last for up to a month after the experience.

A study in Developmental Medicine & Child Neurology indicates that children with epilepsy are at a higher risk of autism spectrum disorder (ASD), often having intellectual disabilities (56.5% vs. 15.4%), being mostly female (38.2% vs. 25.8%), and receiving an autism diagnosis at a younger age (7.4 vs. 8.7 years) compared to those without autism.

Researchers at Loma Linda University Health found that consuming one egg per day, five days a week, is linked to a 27% lower risk of Alzheimer’s disease in individuals aged 65 and older.

A recent study reveals that Parkinson’s disease can be categorised into distinct subtypes, highlighting the limitations of a one-size-fits-all treatment approach. The research identified two main groups and five subgroups through machine-learning analysis, paving the way for personalised therapies. The findings are published in Nature Communications.

A new study indicates that both extremely low and high resting heart rates are associated with a higher stroke risk, contradicting the idea that lower heart rates always signify good cardiovascular fitness.

A meta-analysis of 55 studies involving over 3 million people revealed that 31% of individuals with cannabis use disorder (CUD) also have major depressive disorder (MDD), and CUD is present in 10% of those with MDD, highlighting a mutual relationship between the two conditions.

Omega-3 supplements, commonly used by older adults for cardiovascular health and to reduce cognitive decline, may be associated with a quicker deterioration in cognitive function, according to recent research.

New research challenges the long-held belief that the brain makes decisions in a simple, top-down hierarchy. By discovering decision-making signals in the primary somatosensory cortex, researchers have revealed a system of bidirectional feedback loops that could be the key to building the next generation of energy-efficient, truly intelligent AI.

A recent study indicates that cognitive decline is not unavoidable with ageing, showing that individuals aged 19 to 94 can enhance their brain performance through consistent brain-healthy practices.

Weekly Neuroscience Update

Mapping MNPs in the diseased brain. Credit: Nature Health (2026). 

Tiny micro- and nanoplastic fragments seem to be turning up everywhere, including one of the most well-protected parts of the human body—the brain. In a recent study conducted by Chinese researchers, they found microplastics and nanoplastics (MNPs) in nearly all the brain samples they tested, both healthy and diseased human brains.

Researchers have identified four distinct mental states that occur regardless of whether we are asleep or awake, revealing a “neural fingerprint” for bizarre, dream-like thoughts that can surface even in the middle of the day.

Scientists have mapped a functional gradient in the rostral prefrontal cortex that connects our spontaneous “daydreaming” mind with our “logical” executive control. By studying patients with frontotemporal dementia, researchers discovered that creativity isn’t about how much these networks overlap, but about the functional distance between them. The more distinct and well-connected these two “islands” are, the more creative the individual.

For older adults, deterioration in cognitive function is seen prior to cardiovascular disease (CVD) events, according to a study published online April 20 in JAMA Network Open.

Some brains are resistant to Alzheimer’s despite the disease’s presence, with research from the Netherlands Institute for Neuroscience suggesting that this resistance may relate to how immature neurons respond to damage, aiding understanding of cognitive resilience in ageing.

Researchers propose a new model for how the brain encodes and recalls emotionally meaningful touch, highlighting its role in lifelong mental health.

A new study is the first to show that two of our most sophisticated cognitive functions, using and understanding language and being able to sense how other people feel, have distinct origins in the brain in young children—matching what we know about the adult brain.

Neuroscientists have discovered a secret second network in the brain. AI-mapped astrocyte webs connect distant brain regions, challenging 100 years of neuron-centric theory.

Research indicates that early diagnosis and treatment of epilepsy can enhance outcomes, yet timing for intervention has been unclear. A recent study proposes that treatment could begin as early as 15 weeks gestation to potentially benefit those with certain epilepsy disorders before symptoms manifest.

Finally this week, the World Stroke Organization is warning that climate change poses an escalating threat to brain health, with extreme heat in particular increasing the risk of having a stroke and of patients dying from stroke.

Weekly Neuroscience Update

The soft bioelectrodes use a honeycomb-inspired design that allows researchers to stretch them onto the specific geometry of a patient’s brain, without sacrificing structural strength or sensitivity to electrical and physiological signals. Credit: Tao Zhou

Researchers have developed 3D-printed, honeycomb-structured hydrogel electrodes that perfectly match the unique folds of a patient’s brain for safer, high-quality neural monitoring.

We’ve long known that a run can clear your head, but a landmark one-year randomised clinical trial has finally mapped the long-term biological “why.” The study is the first to prove a cause-and-effect relationship between aerobic exercise and a sustained reduction in cortisol, the body’s primary stress hormone. By simply meeting the standard 150-minute weekly exercise goal, participants effectively lowered the biological “background noise” of stress.

A global research collaboration has discovered that social health is crucial for preserving cognitive function and enhancing the brain’s resilience to dementia.

In a creative shift for psychiatric research, a study suggests that songwriting and group music-making can help people with psychosis reconnect with reality. The research explores the concept of predictive coding, the brain’s ability to anticipate what happens next. By engaging in the rhythmic and melodic expectations of music, participants with schizophrenia and auditory hallucinations reported reduced paranoia and a significant shift away from social isolation.

Repeated menstrual cycles may not only cause endometriosis but also alter brain function. A new study indicates that ongoing inflammation associated with the condition can heighten nervous system sensitivity and lead to persistent pain.

Researchers from the University of California, San Diego discovered that teenagers who start using cannabis experience slower improvements in thinking and memory as they mature, based on a study of over 11,000 participants from the Adolescent Brain Cognitive Development (ABCD) Study published in Neuropsychopharmacology.

A 12-week study from the University of Toronto finds that daily fluctuations in mental sharpness account for an 80-minute difference in productivity between your best and worst days.

Researchers have uncovered evidence that some movement-related symptoms of Alzheimer’s disease may originate outside the brain, which could change how the disease is diagnosed and treated in the future. The study was published in Alzheimer’s & Dementia: The Journal of the Alzheimer’s Association.

Women taking antiseizure medication for epilepsy have around a 45% reduced risk of major congenital anomalies in their children—if they initiate high-dose folic acid before pregnancy.

In a recent publication appearing in Advanced Science, researchers at the Netherlands Institute for Neuroscience challenge the assumptions surrounding the design and materials used for brain implants. Softer, flexible implants are gentler than older ones, but they are not completely harmless. By carefully studying these effects, researchers can begin to design safer implants, and bring long-term, reliable implants closer to reality.

A 20-year study reveals that astronauts’ brains retain a “memory” of Earth’s gravity, causing them to over-grip objects in space to prevent drops that aren’t possible.

New research indicates that walking and balance issues in Alzheimer’s disease may stem from peripheral nervous system failures rather than brain decay, with a study using “human-on-a-chip” technology demonstrating that genetic mutations can directly harm nerve-muscle connections, independent of the brain or spinal cord.

A Phase II trial finds that walking and resistance exercise, along with low-dose ibuprofen, can protect cancer patients from “chemo brain” during treatment.

Researchers have found new insights into asymptomatic Alzheimer’s disease (AsymAD), wherein some older adults remain mentally sharp despite brain changes associated with the disease. Understanding this resilience may lead to earlier detection and strategies to prevent memory loss.

A landmark study has identified a significant association between prenatal prescription of commonly utilized medications and the risk of autism spectrum disorder (ASD) in children.

Researchers found that fluctuations in a person’s heartbeat relate uniquely to brain activity, with chaos-based analysis indicating significant changes in heart-brain coupling during cognitive tasks. The study shows these complex rhythms are important indicators of the central nervous system when under cognitive load.

A longitudinal study of 1,400 children links early pretend play to improved mental health outcomes, suggesting play builds brain resilience. The research suggests that imaginative play is not just recreational but a foundational developmental tool that supports long-term mental wellbeing, even when accounting for socioeconomic status, mother’s mental health, and language ability.

Researchers tracking 24,500 adults found that midlife fitness delays the onset of chronic illness by at least 1.5 years, prioritising quality of life over just longevity.

In a paradigm-shifting discovery, researchers have found that Alzheimer’s disease shares a surprising biological driver with blood cancers like leukaemia. The study reveals that the brain’s immune cells (microglia) accumulate specific cancer-driving mutations as they age. Rather than forming tumours, these mutant cells create a “hostile” inflammatory environment that kills neurons. This suggests that Alzheimer’s may be treatable using existing cancer drugs and detectable through simple blood tests.

A noninvasive neurostimulation technique targeting deep brain regions has been utilised to explore pain mechanisms and shows potential for clinical use in neurology and psychiatry.

A web tool designed to spark reminiscence could help people with dementia and their caregivers feel more connected to each other and less impacted by feelings of pre-death grief, according to a clinical trial co-led by USC and Weill Cornell Medicine published in JAMA Network Open.

Researchers have identified a new DNA region and two genes associated with frailty, providing insights into why some older adults are more frail. This discovery highlights the role of genetic factors in resilience to age-related declines, aiming to lead to targeted interventions for the ageing population.

Neuroscientists have discovered a secret second network in the brain. AI-mapped astrocyte webs connect distant brain regions, challenging 100 years of neuron-centric theory.

A massive transdisciplinary study has shifted the focus of Alzheimer’s research from the brain to the gut. Using AI to analyse data from nearly 10,000 people, researchers identified that common life events, specifically appendix removal and long-term dietary patterns, are among the strongest predictors of the disease. The study suggests that the gut microbiome serves as a primary line of defence for the brain, and that its disruption over decades may ultimately trigger neurodegeneration.

Researchers propose a new model for how the brain encodes and recalls emotionally meaningful touch, highlighting its role in lifelong mental health.

New research shows that a diet high in heavily processed foods can negatively impact the brain’s ability to focus and increases the risk of developing dementia. The study published in Alzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring, examined the diets and cognitive health of more than 2,100 Australian dementia-free adults middle-aged and older.

A 30-year study of 42,000 adults shows that stroke severity is a primary driver of post-stroke dementia and accelerated brain aging.

Researchers have bridged the gap between biology and silicon by creating a 3D programmable device that merges living brain cells with advanced electronics. Unlike previous “brain-on-a-chip” attempts that grew cells on flat surfaces, this device uses a flexible, microscopic metal mesh as a scaffold, allowing tens of thousands of neurons to grow around and through the sensors.

Weekly Neuroscience Update

Personalized fMRI-guided targeting procedure and outcomes. Credit: American Journal of Psychiatry (2026)

A new study reveals that transcranial magnetic stimulation (TMS) can soothe the brain’s fear centre and greatly alleviate symptoms of post-traumatic stress disorder (PTSD), with effects lasting for months post-treatment.

Research published in the Journal of the National Cancer Institute suggests that electroacupuncture may enhance cognitive function and alleviate psychological distress in breast cancer survivors with lingering neuropsychiatric symptoms, offering a nondrug solution for issues like “brain fog,” fatigue, insomnia, and emotional distress post-treatment.

A study of 28,000 people identifies genetic markers in the GLP1R and GIPR genes that explain why some patients lose more weight or experience more nausea on GLP-1 drugs.

A new review suggests that how we interpret ambiguity is a core part of our personality and a major “red flag” for future mental health. While children typically start with a negative bias and shift toward positivity around age 10, those who stay “stuck” in a negative loop face a significantly higher risk of depression, anxiety, and stress-related physical illnesses later in life.

Brain swelling in the days following a stroke caused by a brain bleed is linked to a higher risk of death and disability, a study suggests. The research is published in the journal Stroke.

A 34-country study reveals that the “exposome”—the combination of pollution, social inequality, and political context—is 15 times more predictive of brain aging than any single risk factor. The research calls for a shift from individual “lifestyle” advice to broad structural policy changes to protect global brain health.

Cognitive and physical training can help older adults with mild cognitive impairment (MCI) maintain or improve their ability to move and think simultaneously, but hearing ability and sex influence outcomes, according to a new study.

Researchers have discovered that the brain activates the same neurons when imagining an object as when actually seeing it, highlighting the connection between mental visualisation and visual perception and suggesting that conjuring images is closely related to how we perceive reality. These findings may inform new treatment strategies for mental health issues like PTSD and OCD by clarifying the neural pathways involved in both processes, leading to better therapeutic interventions.

Researchers are developing a multiscale model of the hippocampus to identify why certain neurons are vulnerable to Alzheimer’s disease. The virtual testbed aims to find therapeutic tipping points before memory loss becomes irreversible.