7+ hour, 44+ min ago   (943+ words) A surplus of insulating brain cells, low on one protective protein, tracked the steepest cognitive decline in adults followed since childhood. After 70, memory and quick thinking slow down for most people, and the usual explanation is that the brain’s wiring…...

10+ hour, 25+ min ago   (1157+ words) Early stress in mitochondria before birth helped mouse hearts resist later chemotherapy damage by creating lasting protective changes. Chemotherapy can save lives, but some drugs can also put the heart under serious strain. Doxorubicin, a chemotherapy used against several cancers,…...

1+ day, 14+ hour ago   (1028+ words) A bacterium in the human urinary tract can convert a steroid made by the body into testosterone using two newly identified enzymes. A bacterium that lives inside the human urinary tract can turn a steroid the body already makes into…...

3+ day, 6+ hour ago   (1442+ words) A fruit fly can taste food all over its body. New research shows how those signals travel through the brain to control eating. A fruit fly lands on something sweet and its mouthparts unfold toward it. The obvious way to…...

4+ day, 18+ hour ago   (989+ words) After 30 minutes of play, preschool children performed better on some tasks but struggled more when the next task demanded focus and self-control. For parents and teachers, one everyday moment can be harder than it looks: a preschooler finishes an exciting…...

5+ day, 11+ hour ago   (1143+ words) Switching off a cluster of cells in the mouse brainstem eased nerve pain, and restoring one receptor reversed months of hypersensitivity. The brain runs a painkiller of its own. At the base of the skull, a small cluster of cells…...

1+ week, 9+ hour ago   (1000+ words) Gut microbes may be linked to brain chemistry, anxiety, depression, and sleep through several communication pathways in humans. The human gut is home to a huge community of microbes. They help break down food and can make chemicals that affect…...

1+ week, 1+ day ago   (1061+ words) A new wearable approach to brain stimulation produced an unexpected result that could reshape how flickering-light therapies are delivered. When a light flickers at just the right speed, the brain’s electrical rhythms begin to match its beat. Researchers are studying…...

1+ week, 3+ day ago   (1228+ words) To find buried prey, the elephantnose fish senses tiny electric fields while firing its own pulses. A brain map shows how neurons filter them out. In muddy African rivers, an elephantnose fish hunts with sensors in its skin that pick…...

1+ week, 4+ day ago   (1021+ words) Memory changes may begin by middle age, as brain patterns linked to remembering become less precise with age. Memory problems are often linked with old age. A forgotten name or a familiar face without a clear memory of where it…...