Smell: This is often one of the first senses to be impacted by Alzheimer's disease. The individual may experience either confusion as to what they smell or a lack of sensory capability. It is important if caring for an individual living alone, to keep the refrigerator and cupboards clear of outdated and spoiled food. anthemmemorycare.com/blog/Alzheimer's Aug 7, 2019 Click to view.
Olfaction as an early marker of Parkinson's disease and Alzheimer's disease. https://pubmed.ncbi.nlm.nih.gov/34266602/
Olfactory impairment is a common and early sign of Parkinson's disease (PD) and Alzheimer's disease (AD), the two most prevalent neurodegenerative conditions in the elderly. This phenomenon corresponds to pathologic processes emerging in the olfactory system prior to the onset of typical clinical manifestations. Clinically available tests can establish hyposmia through odor identification assessment, discrimination, and odor detection threshold. There are significant efforts to develop preventative or disease-modifying therapies that slow down or halt the progression of PD and AD.