The Influence of Hobby Engagement on Cognitive Function Among Older Adults: A Population-Based Cohort Study Using...

Area of Science:

• Gerontology
• Neuroscience
• Public Health

Background:

• Cognitive decline is a growing concern in aging populations worldwide.
• Understanding factors influencing cognitive health is vital for intervention development.

Purpose of the Study:

• To investigate the association between hobby engagement and cognitive function in older adults.
• To explore the protective effects of hobbies on cognitive trajectories.

Main Methods:

• Analysis of data from 6854 adults aged 50+ from the English Longitudinal Study of Ageing (ELSA).
• Employed multiple linear regression, linear mixed-effects models, and group-based trajectory modeling (GBTM).
• Compared machine learning algorithms for predictive performance.

Main Results:

• Hobby engagement correlated with higher baseline cognitive, memory, and executive function scores.
• Hobbies were associated with slower decline in orientation over time.
• GBTM showed hobby engagement significantly reduced the risk of a "persistently low cognitive function" trajectory (OR = 0.46).

Conclusions:

• Hobby engagement offers domain-specific protective effects on cognitive health in older adults.
• Promoting hobbies is a potential low-cost public health strategy for cognitive preservation in aging.
• Hobby participation drastically reduces the risk of adverse cognitive trajectories.