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Hyposmia

There are 4 papers on hyposmia in aging research: 2 observational studies in people, 2 reviews. The newest story, Oct 28, 2026: “Combined sleep and smell signs linked to Parkinson’s marker”.

Biomarker

4 papers study it80 more mention it2 findings

5 new papers in 30 daysSee all 84 papers on hyposmia

“Hyposmic participants (n = 1019) had more subjective hyposmia and subjective memory impairment (p < 0.01).”
Identifying individuals at-risk of developing Parkinson's disease using a population-based recruitment strategy: The Healthy Brain Ageing Kassel StudyNPJ Parkinson's disease2025doi:10.1038/s41531-025-01008-w
  • Humans2

Associations

2

Subjective memory impairment

upin humans1

1 study

  1. Hyposmia is associated with subjective memory impairment in humans (hyposmic participants) (p < 0.01).

    “Hyposmic participants (n = 1019) had more subjective hyposmia and subjective memory impairment (p < 0.01).”

    Humanshyposmic participantsn = 1,019

    Identifying individuals at-risk of developing Parkinson's disease using a population-based recruitment strategy: The Healthy Brain Ageing Kassel Study

    NPJ Parkinson's disease

Subjective hyposmia

upin humans1

1 study

  1. Hyposmia is associated with subjective hyposmia in humans (hyposmic participants) (p < 0.01).

    “Hyposmic participants (n = 1019) had more subjective hyposmia and subjective memory impairment (p < 0.01).”

    Humanshyposmic participantsn = 1,019

    Identifying individuals at-risk of developing Parkinson's disease using a population-based recruitment strategy: The Healthy Brain Ageing Kassel Study

    NPJ Parkinson's disease

Latest

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medRxiv

Combined sleep and smell signs linked to Parkinson’s marker

A spinal-fluid test was positive in 94% with a confirmed dream-enactment sleep disorder and reduced smell, versus 40% with the disorder but no reduced smell.A spinal-fluid test was positive in 94% with a confirmed dream-enactment sleep disorder and reduced smell, versus 40% with the disorder but no reduced smell.

Preprint: cohort · 1,652 peopleParkinson's disease
Paper
medRxiv

Spinal fluid protein patterns recur in early Parkinson’s

The observational preprint compared healthy controls, people with possible early signs and people with untreated Parkinson’s in independent cohorts of 721 and 974…The observational preprint compared healthy controls, people with possible early signs and people with untreated Parkinson’s in independent cohorts of 721 and 974 participants.

Preprint: cross-sectional studyParkinson's disease
Paper
Chemical Senses

Healthy plant-rich diets linked to better olfactory function

In a cross-sectional study of 6,690 adults, healthy plant-rich eating patterns and specific foods like fruits and vegetables tracked with lower rates of hyposmia.In a cross-sectional study of 6,690 adults, healthy plant-rich eating patterns and specific foods like fruits and vegetables tracked with lower rates of hyposmia.

Cross-sectional study of 6,690 peoplePopulations
Paper

See all 84 papers on hyposmia

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