Optical illusions are like mini brain tests that are designed to challenge your perception, observation, and visual processing. These visual images hide objects, animals, numbers, or words in plain ...

Our bodies age at different rates, sometimes closely correlated to the years we've spent alive, and sometimes less so. A new study links another factor to the speed at which our brains age: how much ...

RIO DE JANEIRO (AP) — Former President Jair Bolsonaro was granted a brief leave Wednesday from his 27-year prison sentence for a coup attempt so that he could undergo medical tests at a hospital in ...