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TL;DR: A 2026 analysis in Brain, Behavior, & Immunity – Health of 827 middle-aged adults found that profiles combining intestinal-permeability biomarkers with age, cardiometabolic risk, or lifestyle factors were associated with smaller brain volumes and higher…
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TL;DR: A 2026 study in PNAS found that across convention-learning experiments, people explored uncertain options at first, then committed once enough evidence crossed a Tolerance Principle threshold rather than simply copying others or optimizing probabilities…
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TL;DR: A 2026 study in Alzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring found that each 10% higher energy share from ultra-processed foods was associated with lower attention scores and higher modifiable dementia-risk scores in 2,192 dementia…
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Researchers reviewed the potential impacts of physical exercise on the glymphatic system and its implications for neurodegenerative diseases, focusing on the mechanisms involved and the interplay between exercise and sleep quality. Highlights: The glymphatic s…
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A new study looked at how having diabetes may impact brain health in Native Americans. The researchers found that the longer someone had diabetes, the more it affected their brain. But other health issues like obesity did not appear to impact the brain as much…
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Researchers have uncovered an important new mechanism that causes inflammation and damage to the brain’s white matter in Alzheimer’s disease. This discovery about how brain cells called microglia die could lead to new Alzheimer’s treatments. Key Facts: The stu…
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Researchers are gaining exciting new insights into how the drug ketamine can rapidly treat symptoms of depression, including in people who don’t respond to other antidepressants. Key facts about ketamine for depression: Ketamine is an FDA-approved anesthetic t…
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Obesity has been linked to faster brain aging, but can losing weight turn back the clock? A new study provides compelling evidence that shedding pounds through lifestyle changes may attenuate brain aging. Key facts: Participants lost an average of 5% of body w…
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Summary: A new study reveals how certain genes and education levels impact Alzheimer’s disease risk, even in individuals destined to develop dementia. Key facts: The APOE gene influences Alzheimer’s onset in people with a genetic mutation causing early-onset A…
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