Grandparenting, Sports, and Volunteering Linked to Better Cognitive Health, Study Suggests

Engaging in activities such as looking after grandchildren, participating in sports clubs, and volunteering may help ward off memory loss in older age, according to research from Shandong University. The study, published in the Journal of Epidemiology & Community Health, analyzed data from over 57,000 individuals aged 57 to 73 across 24 countries.

Researchers found that individuals who regularly participated in at least three beneficial activities showed the strongest positive impact on cognitive function. Women over 60 appeared to benefit the most. Activities like volunteering and being part of a sports club were associated with a lower risk of cognitive decline. Similarly, attending training courses and caring for grandchildren were linked to higher cognitive scores year after year.

However, the study indicated that participation in church or political groups did not show a consistent link to improved cognitive abilities. The 'use it or lose it' hypothesis suggests that activities stimulating the brain strengthen neural connections and can build new ones, thus preserving cognitive function. The findings support social engagement as a potentially modifiable factor in preventing cognitive decline.

Further analysis revealed that the cognitive benefits were more pronounced in individuals with higher levels of education, those living alone or in rural areas, and individuals who did not suffer from depression, maintained a normal weight, and did not smoke or drink excessively. This suggests a complex interplay between lifestyle, social engagement, and cognitive health.

The research comes at a time when cognitive decline and dementia are significant public health concerns. In the UK, nearly one million people are living with dementia, a figure projected to reach 1.4 million by 2040. Studies also indicate that 10-20% of adults aged 65 and over experience mild cognitive impairment, with a substantial portion developing dementia within five years. A 2024 Lancet report highlighted that nearly half of all dementia cases could potentially be avoided through healthier lifestyles and managing common health conditions like high blood pressure.