New Study Reveals How Work History Could Affect Your Dementia Risk
A study published in The Lancet has explored how the type of work you do throughout your life can influence your risk of developing dementia or mild cognitive impairment (MCI).
Researchers studied over 7,000 people aged 70 and above to see how their work activities from ages 33 to 65 affected their cognitive health. They categorised four groups based on the type of work: stable low, increasing then decreasing, stable intermediate, and stable high levels of physical activity.
Key Findings:
Low Physical Activity Jobs: People in jobs with low physical activity had an 8.8% risk of dementia and a 27.4% risk of MCI.
Changing Physical Activity Jobs: Those whose physical activity increased and then decreased had an 8.2% risk of dementia and a 33.3% risk of MCI.
Moderate Physical Activity Jobs: Individuals in jobs with moderate physical activity had a 16.0% risk of dementia and a 35% risk of MCI.
High Physical Activity Jobs: People in jobs with high physical activity had a 15.4% risk of dementia and a 40.2% risk of MCI.
The Results
The research found that individuals with stable high physical activity jobs had a higher risk of both dementia and MCI. Those with stable moderate physical activity jobs also had an increased risk of MCI, while those with low physical activity jobs had the lowest risk.
Understanding the Reasons
Jobs with high physical demands, like nursing and construction, may put more strain on the body and brain, leading to a higher risk of cognitive impairment. In contrast, jobs with lower physical demands, such as teaching or administration, may offer more cognitive stimulation and flexibility.
Analysis
This study highlights the importance of considering your occupational history when it comes to cognitive health. For those with high lifetime occupational physical activity, it’s crucial to be aware of the increased risk of dementia and MCI. While leisure-time physical activity has many benefits, it’s essential to find ways to reduce excessive physical demands at work, such as through job flexibility and mandatory breaks.
Remember, if you have concerns about dementia or cognitive impairment, it’s always a good idea to consult with healthcare professionals or dementia charities like the Alzheimer’s Society or Dementia UK for guidance and support.
