Per- and polyfluoroalkyl substances (PFAS) have become ubiquitous throughout the environment, and increasing evidence has demonstrated their deleterious effects. A group of smaller, fluorinated compounds are becoming replacements for these 'forever chemicals,' though research suggests the smaller versions could also be harmful. Now, a study reports that the levels of these substances in many indoor and human samples are similar to or higher than those of legacy PFAS.
Read more: 'Ultrashort' PFAS compounds detected in people and their homes, study shows
Among people who report memory and thinking problems, some show no signs of a problem on standard tests, while others have subtle declines on their tests. A new study shows that people who have subtle problems with these tests may have an increased risk of developing mild cognitive impairment, which can be a precursor to dementia.
Read more: New study finds link between subjective and objective memory decline