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Assessment of Age-related Changes in Cognitive Functions Using EmoCogMeter, a Novel Tablet-computer Based Approach

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Obesity and cognitive aging.

Anna K Dahl, Linda B Hassing

Epidemiologic Reviews

|December 22, 2012

Summary

This summary is machine-generated.

Midlife obesity is linked to cognitive aging, but the connection weakens later in life. More research is needed to confirm if obesity causes cognitive decline in older adults.

Keywords:

adiposity aged aging body mass index body weight cognition obesity overweight

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Area of Science:

Gerontology
Neuroscience
Public Health

Background:

Obesity is a widespread health issue with potential implications for cognitive aging.
Understanding the link between obesity and cognitive function in later life is crucial for public health.

Purpose of the Study:

To systematically review the relationship between obesity and cognitive function in non-demented older adults.
To evaluate the evidence for a causal link between obesity and cognitive aging.

Main Methods:

A systematic literature search was conducted using Medline with keywords: obesity, overweight, cognition, cognitive, age, aged.
Included studies required population-based, dementia-free samples and a minimum 5-year interval between exposure and outcome measurement.
Eleven studies met the inclusion criteria, with 7 examining midlife obesity and later-life cognition, and 4 examining late-life obesity and cognition.

Main Results:

Clear evidence indicates that midlife obesity is associated with cognitive aging.
The association between obesity and cognitive function appears weaker when assessed in late life.
The reviewed studies did not provide firm conclusions on causality.

Conclusions:

Midlife obesity shows an association with lower cognitive abilities in later life.
The direction of this association and the causal relationship require further clarification.
Further research is necessary to establish causality between obesity and cognitive decline in aging populations.