Repetitive negative thinking is an important marker of dementia risk, according to a new study. Researchers found that chronic negative thinking is associated with faster cognitive decline and ...

“Those who cannot remember the past are condemned to repeat it.” These words, from 19th-century philosopher George Santayana (famously paraphrased by British prime minister Winston Churchill in ...

The original version of this story appeared in Quanta Magazine. If you want to tile a bathroom floor, square tiles are the simplest option—they fit together without any gaps in a grid pattern that can ...

Autism spectrum disorders are characterised by a broad array of repetitive behaviours and restricted interests that manifest from early childhood through adulthood. These patterns span from simple ...