Background: Olfactory dysfunction is an increasingly recognised condition, associated with
reduced quality of life and major health outcomes such as neurodegeneration and death …

Decreased smell function is related to brain health, future mortality, and quality of life. Most
people inflicted with the SARS-CoV-2 virus evidence some measurable smell dysfunction …

Background The literature regarding clinical olfaction, olfactory loss, and olfactory
dysfunction has expanded rapidly over the past two decades, with an exponential rise in the …

Olfactory dysfunction is common in Parkinson's disease (PD) and often predates the
diagnosis by years, reflecting early deposition of Lewy pathology, the histologic hallmark of …

Decreased olfactory function is very common in the older population, being present in over
half of those between the ages of 65 and 80 years and in over three quarters of those over …

Olfactory dysfunction is among the earliest nonmotor features of Parkinson disease (PD).
Such dysfunction is present in approximately 90% of early-stage PD cases and can precede …

Olfactory dysfunction is an early 'pre-clinical'sign of Parkinson's disease (PD). The present
review is a comprehensive and up-to-date assessment of such dysfunction in PD and …

This study prospectively assessed the 6-month prevalence of self-reported and
psychophysically measured olfactory dysfunction in subjects with mild-to-moderate COVID …

The Cattell–Horn–Carroll theory of cognitive abilities (CHC theory) is a comprehensive
taxonomy of abilities embedded in multiple overlapping theories of cognition. Like all good …

Background Olfactory deficits in Alzheimer's disease (AD) and idiopathic Parkinson's
disease (PD) have been well established. Objective To clarify and review the literature by …