Home / Health / New Dementia Risks: WHO Adds 7 Factors
New Dementia Risks: WHO Adds 7 Factors
1 Sep
Summary
- WHO guidelines now include stroke and TBI as dementia risk factors.
- Sleep problems and HIV are among seven new additions to risk list.
- Older list included diet, alcohol, and cognitive activity.
The World Health Organization (WHO) has significantly updated its guidelines for reducing the risk of cognitive decline and dementia. The second edition of their 2019 report now identifies 19 modifiable risk factors, an increase from the original 12. This expansion incorporates the latest scientific evidence and advances in dementia risk reduction strategies.
Seven new health conditions and exposures have been added to the list of risk factors. These include stroke, traumatic brain injury (TBI), sleep problems, HIV, and menopausal hormone therapy. These join previously recognized factors such as cognitive activity, social engagement, physical activity, alcohol and tobacco use, diet, diabetes, hypertension, dyslipidemia, and hearing loss. Experts emphasize the importance of addressing these factors throughout life.
Dr. Daniel Amen, founder of Amen Clinics, noted that while the WHO is adding TBI, it's a crucial factor he has long emphasized, citing how even mild head injuries can have lasting effects. Sleep's role in brain waste clearance and HIV's impact on the central nervous system are also highlighted. While the WHO suggests caution regarding menopausal hormone therapy specifically for dementia prevention, hormonal changes during menopause can affect mood and memory. Air pollution is also a concern, with research linking long-term exposure to cognitive decline, though evidence certainty is low.
Experts stress that while genetics play a role, many risk factors can be managed. The updated guidelines encourage individuals to proactively assess their behaviors and choices, asking if they are beneficial or detrimental to brain health. Focusing on social connections, continuous learning, and making better decisions are presented as key dementia prevention strategies for a healthier life.
