How Much Microplastic Is in the Human Brain? A 2024 Study Found a Spoon's Worth
Brain tissue from people who died in 2024 contained ~0.5% plastic by weight — 50% more than samples from 2016. Dementia brains had 3–5× higher concentrations.
Research Briefs
Quick, actionable summaries of the latest health research — read in under 3 minutes.
Microplastics in Tap Water: What a Global Study Found
A study of 159 tap water samples from 14 countries found microplastics in 81%. Standard municipal treatment doesn’t remove them.
Microplastics Found in 77% of Human Blood Samples
Dutch researchers detected microplastics in the blood of 77% of healthy volunteers. Here’s what they found and what you can do.
NAD+ Supplements: What the Human Trials Actually Show
NAD+ precursors raise blood levels reliably — but the evidence for anti-aging benefits in humans is still early.