Articlei-Perception
Olfaction and Aging: A Review of the Current State of Research and Future Directions.
Article in i-Perception. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
52 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Olfaction and declarative memory in aging: a meta-analysis.Chemical senses · 2023Pooled it
- Blood-based biomarkers of Alzheimer's disease and olfactory decline over 15 years in older adults.GeroScience · 2026Article
- Dysfunction in Olfactory Identification and Physical Function Decline in Older Adults.JAMA otolaryngology-- head & neck surgery · 2026Article
- Elucidating the burden of dual-sensory impairment in community-based older individuals in a multi-ethnic society.Scientific reports · 2026Article
- Article
- Article
- Human olfactory sensitivity varies across geographical locations.Scientific reports · 2026Article
- What makes a scent trigger a memory? A cognitive decomposition of odor-evoked retrieval.iScience · 2026Article
- Smell Is Emotion.Brain sciences · 2025Article
- Cortical morphology alterations in non-COVID-19 post-infectious olfactory dysfunction.Scientific reports · 2025Article
- From Disruption to Control: Insights from Focus Groups Exploring Nutrition and Chemosensory Changes During Menopause.Nutrients · 2025Article
- Demographic and geographical determinants of human olfactory perception of 909 individuals inhabiting 16 regions.iScience · 2025Article
- Olfactory impairment associated with reduced physical capacity 24 months after COVID-19.Brain, behavior, & immunity - health · 2025Article
- Scenting the Hedonic Connection: Exploring the Impact of Subjective Olfactory Dysfunction on Depressive Symptoms.PsyCh journal · 2025Article
- Aging and chronic inflammation: impacts on olfactory dysfunction-a comprehensive review.Cellular and molecular life sciences : CMLS · 2025Review
- Age-related decrease of odorant sensitivity for a selection of nine diverse molecules.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025Article
- Dogs' olfactory resting-state functional connectivity is modulated by age and brain shape.Scientific reports · 2025Article
- Sensory Insights in Aging: Exploring the Impact on Improving Dietary Through Sensory Enhancement.Food science & nutrition · 2025Review
- Development and validation of the four-item Concise Aging adults Smell Test to screen for olfactory dysfunction in older adults.International forum of allergy & rhinology · 2025Article
- A dataset of laymen olfactory perception for 74 mono-molecular odors.Scientific data · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Olfaction, the sense of smell, is characterized by a notable age-dependency such that aging individuals are more likely to have poor olfactory abilities. These impairments are considered to be mostly irreversible and as having potentially profound effects on quality of life and food behavior, as well as constituting warning signs of mortality, cognitive dysfunction, and dementia. Here, we review the current state of research on aging and olfaction, focusing on five topics which we regard to be of particular relevance for the field: nutrition and health, cognition and dementia, mortality, environment and genetics, and training-based enhancement. Under each of these headlines, we provide a state-of-the-art overview and discuss gaps in our knowledge which might be filled by further research. Understanding how olfactory abilities are diminished in aging, and how they may be alleviated or recovered, involves a set of challenging tasks for researchers in the years to come.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.