Researchers Uncover New Lifestyle Factor That Could Affect Alzheimer’s Risk
Summary
A large study found that doing exercise for fun, like walking or swimming, lowers the risk of dementia. However, physical activity done as part of a job may increase the risk of dementia.Key Facts
- Researchers studied data from over 4.2 million people in 30 countries.
- Leisure-time exercise was linked to a 24% lower risk of dementia.
- Physical activity at work was linked to a 20% higher risk of dementia.
- The study followed participants aged 45 to 93 for about 10 years.
- Household physical activity might help reduce dementia risk, but evidence is limited.
- Using walking or cycling to commute showed a slight increase in dementia risk based on few studies.
- Job-related physical activities may involve repetitive tasks and exposure to pollution, which could affect brain health.
- Voluntary exercise often has social and mental benefits, like companionship and fresh air, which may protect the brain.
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