The connection between our surroundings and the risk of developing dementia, a group of brain conditions that impair memory and thinking, is becoming more evident. Although genetics play a big part in determining who might get dementia, the environmental venue we live in also has a significant impact.
Air pollution is a major environmental factor linked to dementia. Inhaling pollutants like fine particulate matter and nitrogen oxides can cause brain inflammation and oxidative stress, both associated with the progression of dementia. People living in highly polluted areas are at a greater risk of experiencing cognitive decline.
Lifestyle choices are equally important in influencing dementia risk. Eating foods rich in antioxidants and anti-inflammatory properties, such as fruits, vegetables, and fish, can protect the brain. Engaging in regular physical activity and keeping an active social life not only boosts blood flow to the brain but also helps build a buffer against cognitive decline, potentially delaying dementia symptoms.
Exposure to certain heavy metals, like lead, mercury, and aluminum, is another environmental concern. These metals can build up in the brain over time, affecting its functionality.
Furthermore, the design of our living spaces plays a role in our cognitive health. Communities that encourage walking, social interactions, and connecting with nature can significantly support mental well-being and reduce the risk of dementia.
Recognizing the influence of environmental factors such as pollution, lifestyle, exposure to harmful substances, and urban design on dementia risk is crucial. It highlights the importance of making positive changes in our environment and lifestyle to potentially lower the incidence of dementia and improve overall quality of life.
Sources:
- https://www.nia.nih.gov/health/alzheimers-symptoms-and-diagnosis/how-biomarkers-help-diagnose-dementia,
- https://ehp.niehs.nih.gov/doi/10.1289/EHP4869
- https://www.nia.nih.gov/health/clinical-trials-and-studies/what-are-clinical-trials-and-studies#diversity,
- https://www.nia.nih.gov/10-years-alzheimers-disease-and-related-dementias-research/increased-understanding-how-social
- https://apps.unthsc.edu/itr/research/habs