Some 2.3 million of U.S. adults over 65—more than 4%—have a diagnosis of dementia. But even without a diagnosis, a certain amount of cognitive decline is normal as age sets in.

Relative representation of numerical quantity in the brain Although the actual number of items differs, the brain exhibits similar activity patterns when focusing on an extra-small (XS) quantity ...

'A number of threads retracted from the brain' of Neuralink's first implant patient, but they say they're still 'beating my friends in games that as a quadriplegic I should not be beating them in ...

The makers of brain-training apps and games claim their products can do everything from staving off cognitive decline to improving your IQ. But so far these claims have been met with mixed evidence .

Some 2.3 million of U.S. adults older than 65 — more than 4% — have a diagnosis of dementia. But even without a diagnosis, a certain amount of cognitive decline is normal as age sets in.