Dance, garden and swim your way to a better brain as you age, study says

Walking, gardening, swimming, dancing and other leisurely activities may prevent brain shrinkage in older adults, a new study finds

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To examine the association between physical activity and brain aging, researchers from Columbia University assessed activity levels of older adults and analyzed the quality of their brains via magnetic resonance imaging scans. They found that those who were more active had larger brain volumes than their inactive counterparts, indicating that physical activity may help to slow brain volume loss, said Dr.

"Given the close relationship between brain atrophy and cognitive decline or dementia risk, it will be very interesting to formally test in future studies whether the protective role of physical activity on cognition or reducing dementia risk is indeed through slowing" undesirable changes of the brain such as shrinkage or pathological changes, Gu said.

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