All articles tagged with #gut brain axis
The article explains how the vagus nerve may help regulate inflammation and influence health through bioelectric medicine, but cautions that many devices and claims lack solid evidence, urging rigorous science to distinguish real therapeutic potential (such as for autoimmune conditions) from hype.
A review of nine observational studies (ages 10–19) finds teens who consume more sugary drinks have about 34% higher odds of an anxiety disorder, but causation can’t be established and reverse factors may play a role; reducing sugary intake could support adolescent mental health.
Neuroscientist Majid Fotuhi shares six practical brain-boosting habits: start your day with a positive mindset; exercise about four days a week to boost oxygen, BDNF, and hippocampal growth; eat a high-fiber breakfast to support overall body-brain health and gut balance; use brief mind resets (slow breathing and a simple ma-ta-sa-ba finger rhythm) to curb stress and sharpen focus; don’t panic if sleep is interrupted—keep moving and breathing to reset; and practice memorizing three to four new names daily to strengthen memory.
A Cedars-Sinai doctor advances a novel “gravity intolerance” theory suggesting IBS risk may hinge on how the body tolerates gravity. Using a framework called the G-force cube (resistance, detection, vigilance), he argues gravity-related factors could unify IBS with related conditions like anxiety, pain sensitivity (fibromyalgia), and POTS. The idea is preliminary and not a replacement for established IBS factors (bacteria, inflammation, diet, genetics); more research is needed, but gravity may help organize known risk factors and guide future study.
A randomized trial in adults aged 60–80 shows that how probiotics are prepared alters their brain effects: encapsulated bacteria survive digestion longer and enhance memory, attention, and orientation, while non-encapsulated powder more strongly improves mood and reduces anxiety/depression. MRI-based brain connectivity differences between the two forms suggest the delivery method can personalize brain health strategies for aging, targeting cognition or emotional well-being.
A 125-participant study found higher fecal calprotectin (gut inflammation) associated with amyloid plaques and poorer memory, supporting a gut-brain link in Alzheimer's; causality isn’t proven and animal studies are being pursued.
New research suggests that the gut microbiome may play a role in social anxiety disorder, with transplant experiments in rats showing that bacteria from adolescents with social anxiety induce anxiety-like behaviors and brain changes, highlighting a potential biological link via the gut-brain axis.
A high-fat diet disrupts the gut-brain axis by increasing serotonin in the gut while depleting it in the brain, leading to inflammation, impaired mood, and metabolic issues, highlighting the importance of gut microbiome health for mental and physical well-being.
A comprehensive review suggests that most people who believe they are gluten sensitive are actually reacting to other factors like FODMAPs or psychological influences, with true gluten sensitivity being rare. The study emphasizes the importance of proper diagnosis and personalized treatment, highlighting that unnecessary gluten avoidance can be costly and nutritionally detrimental.
A comprehensive review suggests that most people who believe they are gluten sensitive are actually reacting to other dietary components like FODMAPs or psychological factors, rather than gluten itself. True gluten sensitivity appears to be rare, and symptoms are often influenced by expectations and anxiety. The study recommends targeted testing and dietary adjustments, emphasizing the importance of personalized, evidence-based approaches over unnecessary gluten avoidance.
A comprehensive review in The Lancet challenges the common belief that gluten is the primary cause of symptoms in people without coeliac disease, suggesting that many such cases are due to other dietary factors like FODMAPs or psychological factors, and recommends targeted testing and dietary management instead of unnecessary gluten avoidance.
A study suggests that bacterial cell wall molecules like peptidoglycan are present in the brain and fluctuate with sleep cycles, supporting a new 'holobiont condition' model where sleep is regulated by interactions between the brain and microbiome, potentially influencing cognition, behavior, and evolution.
Researchers used the advanced AI model AlphaFold3 to predict the structures of all 25 human bitter taste receptors, finding it more accurate than previous models. The study revealed conserved intracellular regions and variable extracellular regions, suggesting these receptors play a dual role in taste and gut-brain signaling, with implications for appetite control, glucose metabolism, and diabetes research.
A large-scale study suggests that chronic gut problems, hormonal, metabolic, and nutritional issues like vitamin D deficiency may predict the risk of developing Alzheimer's and Parkinson's disease years before symptoms appear, highlighting the importance of early health markers and systemic health in disease prevention.
A global study has found a significant increase in gut-brain disorders like IBS and functional dyspepsia since the COVID-19 pandemic, especially among long COVID sufferers who also experience higher anxiety and depression, highlighting the need for updated research and care models.