New Study Uncovers Two Surprising Risk Factors for Dementia, Bringing Total to 14
In a groundbreaking new study, researchers have identified two unexpected risk factors for Alzheimer’s disease, adding to a growing list of 14 factors that have been linked to the development of dementia. The study, led by researchers from University College London and published in The Lancet, sheds light on the importance of addressing these risk factors to potentially prevent many cases of dementia globally.
Untreated Vision Loss and High Levels of LDL Cholesterol Linked to Alzheimer’s
The two new risk factors identified in the study are untreated vision loss and high levels of LDL cholesterol, also known as “bad cholesterol.” Vision loss and high LDL cholesterol join a list of 12 other risk factors that were previously identified in 2020, including hearing loss, lower education, smoking, hypertension, obesity, physical inactivity, depression, diabetes, excessive alcohol consumption, air pollution, traumatic brain injury, and social isolation.
According to the researchers, these 14 factors are responsible for roughly half of dementia cases globally. This means that by addressing and eliminating these risk factors, it may be possible to prevent a significant number of dementia cases in the future.
Addressing Dementia Risk Factors on a Societal Level
Fiona Carragher, chief policy and research officer at the Alzheimer’s Society in the U.K., emphasized the importance of addressing dementia risk factors not just on an individual level, but on a societal level as well. She noted that while some risk factors can be managed through lifestyle changes, others, such as social isolation, education inequalities, and air pollution, require public health interventions and joint action between government and industry.
Dr. Earnest Lee Murray, a board-certified neurologist, highlighted the importance of lifestyle factors in reducing the risk of dementia. He emphasized the connection between heart health and brain health, noting that what is good for the heart is also good for the brain. This includes maintaining a healthy diet, exercising regularly, and engaging in cognitively stimulating activities.
Preventing Vision Loss and Promoting Heart Health
To prevent vision loss, the U.S. Centers for Disease Control and Prevention (CDC) recommends getting regular eye exams, wearing protective eyewear in high-risk environments, and wearing sunglasses to protect against UV rays. Knowing your family’s eye health history, eating a diet rich in fruits and vegetables, maintaining healthy blood sugar levels, and avoiding smoking are also important factors in preserving vision health.
In addition to preventing vision loss, eating a diet rich in fruits and vegetables can also help promote heart health. The Mediterranean diet, which is high in fruits, vegetables, whole grains, and healthy fats, has been shown to be beneficial in delaying the onset of dementia. Regular exercise, smoking cessation, and alcohol moderation are also essential in reducing the risk of dementia.
Cognitive Activities and Brain Health
Participating in cognitively stimulating activities, such as working puzzles or reading challenging books, can help maintain cognitive abilities and delay the onset of dementia. Dr. Murray advises his patients to find activities they enjoy that challenge their brains, as this can help keep the mind sharp and active.
Overall, the study underscores the importance of addressing risk factors for dementia not just on an individual level, but on a societal level as well. By taking steps to address these risk factors, it may be possible to prevent a significant number of dementia cases in the future.
Conclusion
The new study revealing two surprising risk factors for dementia highlights the importance of addressing these factors to potentially prevent many cases of Alzheimer’s disease. By focusing on lifestyle factors such as diet, exercise, and cognitive activities, individuals can take proactive steps to reduce their risk of developing dementia. Additionally, societal interventions are needed to address risk factors such as social isolation, education inequalities, and air pollution. By working together to address these risk factors, we can make significant strides in preventing dementia and improving brain health worldwide.