6+ hour, 2+ 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…...

8+ hour, 43+ 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+ week, 1+ day ago   (1184+ words) Confidence builds a sense of control, and two brain circuits turn that estimate into how much you learn from a win or a loss. When a job application disappears into silence, you have to decide whether the resume was weak…...

2+ day, 9+ hour ago   (1003+ words) Carefully timed sounds can make fluid waves larger in the sleeping brain, giving researchers a new way to study how brain activity and CSF flow are connected. Sleep is often treated as a time when the brain simply shuts down....

2+ day, 13+ hour ago   (982+ words) Ten minutes of very slow running improved mood, mental speed, and activity in brain regions linked with control. Exercise is often linked with long workouts, fast running, and heavy effort. That can make the idea of exercising for brain health…...

3+ day, 4+ 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…...

3+ day, 18+ hour ago   (1253+ words) MIT engineers used voltage imaging to map single electrical spikes across nearly a whole zebrafish brain at 200 scans per second. Nerve cells fire in pulses that are far too quick for the usual whole-brain movie to catch. In those movies,…...

4+ day, 14+ hour ago   (795+ words) Memory and consciousness may be encoded in the chemistry of the mesh packed around brain cells, not in the signals passing between them. Twenty years after you last heard it, a song comes on and the memory arrives with the…...

4+ day, 16+ hour ago   (1126+ words) Two groups of brainstem cells build sleep drive in mice, and damping them cut sleep by nearly 70% without the usual damage. Push through a long enough day and the urge to sleep stops being a choice. That pressure builds the…...

5+ day, 10+ 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…...