Highlighting recent dementia risk papers

We thought you may be interested in reading about some recent studies that consider dementia risk and environmental / lifestyle factors.

Highlighting recent dementia risk papers

You can read the summaries of these papers below or click through to the full article by clicking the on name.


Protective effects of dog ownership against the onset of disabling dementia in older community-dwelling Japanese: A longitudinal study

The study explores the link between dog ownership and the risk of developing dementia in older adults. It found that owning a dog can reduce the risk of dementia by 40% compared to non-owners. This protective effect is attributed to increased physical activity and social interaction among dog owners. The research used data from over 11,000 participants, highlighting that regular exercise and reduced social isolation are key factors in lowering dementia risk. Interestingly, no significant difference was found between cat owners and non-owners.


Specific vegetable types are associated with lower long-term risk for late-life dementia: the Perth Longitudinal Study of Aging Women (abstract only - Full article requires subscription)

This study examines the relationship between vegetable intake and the risk of late-life dementia (LLD) in older Australian women. It involved 1206 women aged 70 and above, tracking their vegetable consumption and LLD events over 14.5 years. The findings suggest that higher intakes of yellow/orange/red vegetables, allium vegetables, and green leafy vegetables are associated with a significantly lower risk of LLD events, hospitalizations, and deaths. The study highlights the potential benefits of specific vegetable types in reducing dementia risk and calls for further validation in other cohorts, including men.


Hearing loss, social isolation and depression in participants aged 50 years or over in Tasmania, Australia

In this study uncorrected hearing loss (HL) was linked to poor mental health and social isolation, increasing the risk of dementia. Correcting hearing loss seemed to improve these issues, although depression remained a concern. Long-term studies are needed to understand the effects of hearing loss correction over time.