Multiple outlets report that “smell training” is being discussed as a possible way to support brain function and help flag risk of neurodegenerative disease. They focus on the idea that loss of smell can be an early symptom of conditions such as Alzheimer’s disease and Parkinson’s disease. The articles describe smell training as an approach where individuals repeatedly and deliberately practice identifying and distinguishing different odors, typically over a set period. The broader claim is that this regular exposure and attention may help improve or maintain aspects of olfactory function, which can be relevant because smell impairment can precede more obvious cognitive or motor symptoms. While the reports link smell changes to dementia risk, they do not describe smell training as a definitive treatment or a stand-alone diagnostic tool. Instead, the emphasis is on its potential role as an intervention and as a prompt to seek medical advice if a person experiences a noticeable decline in smell. Overall, the coverage presents smell impairment as a meaningful clinical clue and smell training as a structured, non-drug strategy under investigation.