Human brain organoids are becoming more sophisticated, but blood-vessel shortages, immature circuitry and inconsistent results still limit their role as substitutes for animal research.
The PATHFINDER 2 study found cancer signals across 17 broad types using Galleri, but the test missed many cancers and has not been shown to reduce cancer deaths.
A study of 29 healthy adults found changes in brain-fluid signals and circulating Alzheimer’s-related proteins after vibration plus nitroglycerin. Researchers have not demonstrated an Alzheimer’s treatment.
Studies of the olfactory bulb and the decay-related compound putrescine reveal rapid human odor-avoidance responses. The evolutionary claims require careful limits.
Research involving 13 adults with Type 2 diabetes and a separate UK Biobank analysis suggests a link between daylight and glucose levels. The evidence remains preliminary—and tanning beds are not a safe treatment.
A study published October 29, 2026, found unusually high blood levels of phosphorylated tau in healthy newborns—without the accompanying Alzheimer’s disease biomarker pattern. Scientists say the difference could sharpen understanding of brain development and…
A Nature study links a gut bacterial fatty acid to reduced artery plaque in mice. Human benefits remain unproven, and the findings do not replace statin treatment.
Evolution helped shape our attraction to sugar and caution around bitterness. Taste genes, U.S. food spending and modern dietary research reveal a more complicated story than a simple survival instinct.
A bdelloid rotifer survived in ancient Siberian permafrost and reproduced after thawing. What the 2021 study proved—and what it cannot tell us about cryopreservation.
A 2026 study strengthens evidence for repeated Neanderthal burials at Shanidar Cave. But a famous flower-burial theory—and claims about an ancient afterlife—remain unproven.
