Epilepsy patients wearing brain electrodes revealed that a breath’s rise and fall lines up with brain wave activity, but only through the nose, not a chest strap, and only in a narrow slice of recordings.
A decade-spanning survey of 1,361 radiocarbon dates across the Amazon Basin finds charcoal nearly absent before human arrival and widespread soon after, tracing 10,000 years of fire driven almost entirely by people, not climate.
A pulsed, redesignable electromagnet outperformed the permanent magnets used in past reentry tests, widening a model spacecraft’s shock layer and hinting at heat shields that reshape their own protective field mid flight.
Corals in the Galapagos hold a thousand years of ocean chemistry showing El Nino has grown far stronger over the last four decades, a trend that tracks rising global temperature and stumps the climate models built to predict it.
Two new lab tools push protein engineering in opposite directions at once: one builds proteins nature never made from an expanded genetic alphabet, the other calculates precisely how to destroy a disease protein already causing harm.
Obese mice ship fat-derived vesicles across the placenta that reprogram fetal liver DNA, switching on glucose production weeks early and setting up glucose intolerance in male offspring by adulthood.
What the Study Found For more than 20 years, silicon carbide has carried a reputation it couldn’t quite live up to. Engineers talked about it
In the hippocampus, the brain’s memory hub, a stalled process of creating new neurons may explain why depression distorts how people interpret everyday experiences, blurring past rejections into present moments.
Global fertility in 2023 sat just 3 percent above replacement level, an American Enterprise Institute report argues, with East Asia now below one birth per woman and over 50 countries recording more deaths than births.
Nearly 250,000 comments poured into FDA dockets on proposed menthol-cigarette and flavored-cigar restrictions. A new analysis finds that most were form letters, many carrying content linked to tobacco-company campaigns.
Human brain tissue grown from stem cells kept maturing in culture for more than five years, following roughly the same timetable as a real brain. Chemical marks on its DNA recorded how long it had been growing, and older cells remembered which developmental steps they had already completed.
Across 13 experiments and nearly 8,000 trials, four leading AI models read character from faces the way humans do, favoring competent-looking candidates for real jobs and casting suspicion on untrustworthy-looking strangers. Newer models showed more bias, not less.