IQ tests, or Intelligence Quotient tests, are simple challenges designed to measure a person's cognitive abilities and ...

This year, we have set about trying to measure changes in the mental abilities ... tests will be given to the climbers as they ascend. To prevent the climbers from relying on the effect of ...

Age and mental fitness recently have become a leading issue in the US presidential race. While the issue has loomed over President Joe Biden, 81, and his opponent Donald Trump, 78, in the past ...