-
Drinking caffeinated coffee and tea daily may slightly decrease risk of dementia. Absolute risk reduction of 0.2%. Highest vs lowest caffeinated coffee quartile: incidence 141 vs 330 per 100,000 person-years (difference ~189 cases/100,000 person-years; ARR ≈ 0.189%). And this makes headlines. 🙄
Medical Mythbusting Commentary for February 19, 2026 Source:Drinking caffeinated coffee and tea daily may slightly decrease risk of dementia: Experts Reference:Coffee and Tea Intake, Dementia Risk, and Cognitive Function
-
Observational food study states that high-fat cheese intake is associated lower lower risk of dementia in Swedes. No causal link. More of the same with these food studies. They are becoming increasingly background noise.
Medical Mythbusting Commentary for December 19, 2025 Source:Study finds potential link between high-fat cheese and lower risk of dementia Reference:High- and Low-Fat Dairy Consumption and Long-Term Risk of Dementia
-
New study evaluates the effect of low B12 levels on cognition in a cohort of 231 people without cognitive impairment and dementia.
Medical Mythbusting Commentary for October 8, 2025 Source:Scientists Found a Major Problem With Vitamin B12 Guidelines, and Your Brain Might Be at Risk Reference:Vitamin B12 Levels Association with Functional and Structural Biomarkers of Central Nervous System Injury in Older Adults
-
Study claims cannabis-related hospital visits for older adults increases dementia odds
Medical Mythbusting Commentary for April 22, 2025 Source:Study claims cannabis-related hospital visits for older adults increases dementia odds Reference:Risk of Dementia in Individuals With Emergency Department Visits or Hospitalizations Due to Cannabis
-
There may be an additional reason to vaccinate against Shingles; it may reduce the risk of dementia.
Medical Mythbusting Commentary for April 3, 2025 Source:Shingles is awful, but there may be another reason to get vaccinated. It may fight dementia Reference:Does shingles vaccination cut dementia risk? Large study hints at a linkA natural experiment on the effect of herpes zoster vaccination on dementia
-
Microplastic accumulation in the brain noted in dementia patients. Causality uncertain but source of said plastics can come from microwaving food in plastic containers.
Medical Mythbusting Commentary for March 10, 2025 Source:Doctor’s warning to microwave users after dementia discovery Reference:Human microplastic removal: what does the evidence tell us?Bioaccumulation of microplastics in decedent human brains
-
“Exercise-in-a-pill” headlines are somewhat premature. Might be good for the mice in the study but earliest of the early days to muse if there are potential benefits down the road for people.
Medical Mythbusting Commentary for November 19, 2024 Source:“Exercise-In-A-Pill” Could Bring Dementia-Fighting Benefits To People Who Can’t Work Out Reference:Activation of the muscle-to-brain axis ameliorates neurocognitive deficits in an Alzheimer’s disease mouse model via enhancing neurotrophic and synaptic signaling
-
Headline citing a study that being sleepy during the day may increase your risk of pre-dementia syndrome is fraught with caveats and limitations.
Medical Mythbusting Commentary for November 8, 2024 Source:Sleepy during the day? You may be at higher risk for a pre-dementia syndrome, study finds Reference:Association of Sleep Disturbances With Prevalent and Incident Motoric Cognitive Risk Syndrome in Community-Residing Older Adults
-
Biden says the debate was a bad night. Here’s how doctors would evaluate if it was something more
Medical Mythbusting Commentary for July 8, 2024 Source:Biden says the debate was a bad night. Here’s how doctors would evaluate if it was something more