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Landmark Research Reveals 45% of Dementia Cases Can Be Prevented

Strategic Insights

— 1 min read

Dementia could be prevented in nearly half of cases through lifestyle and environmental changes, a groundbreaking report by the Lancet Commission on Dementia Prevention has found. The study identified 14 risk factors that increase the chance of developing dementia, including high cholesterol levels, hearing loss, social isolation, and lack of education and cognitive activity. Researchers urged individuals to take action at any stage of life to reduce the risk of dementia, emphasizing that it is "never too early or too late" to make changes.

Key Takeaways:

  • The Lancet Commission on Dementia Prevention identified 14 preventable factors that increase the chance of developing dementia, which account for 45% of cases.
  • High cholesterol levels and hearing loss were found to be two of the most significant risk factors, each accounting for 7% of dementia cases.
  • Social isolation in old age and lack of education and cognitive activity were also key factors, each associated with 5% of cases.
  • High LDL (bad) cholesterol levels, untreated sight loss, high blood pressure, smoking, obesity, depression, physical inactivity, diabetes, excessive alcohol consumption, traumatic brain injury, and exposure to air pollution were also identified as risk factors.
  • Incorporating daily exercise, such as a walk, and addressing vision and hearing loss can have a significant impact on reducing the risk of dementia.
  • The report's findings come from a commission that brings together 27 of the world's leading dementia experts, who reviewed the most up-to-date science on the risk factors.

Statistics:

  • 45% of dementia cases can be prevented through lifestyle and environmental changes.
  • High cholesterol levels account for 7% of dementia cases.
  • Hearing loss accounts for 7% of dementia cases.
  • Social isolation in old age accounts for 5% of dementia cases.
  • Lack of education and cognitive activity accounts for 5% of dementia cases.
  • Almost 1 million people in the UK have dementia, a number expected to reach 1.4 million by 2040.
  • England could save £4 billion by introducing policy changes to cut dementia rates.

Sources:

  • The Lancet Commission on Dementia Prevention
  • Alzheimer's Association International Conference in Philadelphia
  • University College London
  • The Lancet Healthy Longevity journal

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