The World Health Organization (WHO) has highlighted new evidence suggesting that up to 45% of dementia cases worldwide could be prevented or delayed by addressing key lifestyle and environmental risk factors.
The guidance comes as dementia continues to affect millions of people globally, with health experts warning that the number of people living with the condition is expected to rise significantly as populations age. The WHO is urging governments and individuals to focus on prevention strategies that support long-term brain health.
What Is Dementia?
Dementia is not a single disease but a group of conditions that affect memory, thinking, reasoning, and the ability to carry out everyday activities.
Alzheimer’s disease is the most common form of dementia, accounting for an estimated 60% to 70% of cases worldwide. Symptoms often develop gradually and become more severe over time, affecting independence and quality of life.
Risk Factors That Can Be Reduced
According to the WHO, several modifiable risk factors are linked to dementia. Reducing or managing these risks may help lower the likelihood of developing the condition.
The organization recommends:
- Controlling high blood pressure.
- Avoiding tobacco use.
- Limiting excessive alcohol consumption.
- Staying physically active.
- Eating a healthy, balanced diet.
- Managing diabetes and high cholesterol.
- Protecting hearing and treating hearing loss when possible.
- Staying socially connected and mentally active throughout life.
Health experts note that these measures also support heart health, which is closely linked to brain health.
Growing Global Challenge
The WHO estimates that more than 55 million people are currently living with dementia worldwide, with nearly 10 million new cases diagnosed each year.
Without stronger prevention efforts, the global burden of dementia is expected to increase as life expectancy continues to rise, placing additional pressure on families, caregivers, and healthcare systems.
Importance of Early Diagnosis
While there is currently no cure for most forms of dementia, early diagnosis can help people access treatment, support services, and care planning sooner.
Healthcare professionals encourage individuals experiencing persistent memory problems, confusion, or changes in thinking to seek medical evaluation as early as possible.
Early intervention can improve quality of life and help families prepare for future care needs.
WHO Calls for Action
The WHO is encouraging countries to strengthen public awareness campaigns, expand access to healthcare services, and promote healthy lifestyles from an early age.
The agency says reducing modifiable risk factors could significantly lower the future burden of dementia while improving overall public health.
