science

It's a direct quote that's used later in the article:

Modern inquiry into fluoride’s non-dental health effects began to pick up pace in 2015, when the National Toxicology Program (NTP) requested a systematic review on fluoride’s impact on neurodevelopment. By 2019, toxicology researcher Bruce Lanphear, of Simon Fraser University in Canada, co-authored a study finding fluoride exposure was associated with decreased IQ, which would later be incorporated into the NTP’s systematic review. “That gives you an indication that the science of fluoride is starting to evolve – it wasn’t set in stone 70 years ago,” he said. Lanphear, and a small group of like-minded toxicology researchers, argue now is the time for us to “pause and have an independent scientific committee look at all this new evidence” as “we have a lot of new science specifically about fluoride and the developing brain,” he said.