A person’s IQ (intelligence quotient) is a score derived from standardized tests designed to measure human intelligence and intellectual potential. IQ tests include questions that measure reasoning and problem-solving skills. The discovery that average IQs differ worldwide has been a focus of inquiry and controversy.
Healthline is a shit tier source to be fair. Even wikipedia says it is a terrible source. They put it in the same category as the daily mail.
Looks like links to it are completely blacklisted, too. That’s rare to see.
https://en.wikipedia.org/wiki/WP:HEALTHLINE