40% of the global population suffers from a neurological disorder

40% of the global population suffers from a neurological disorder. Fewer than one in three countries worldwide has a national policy to address the growing burden of neurological diseases, which cause over 11 million deaths annually, the World Health Organization (WHO) warns.

According to the new Global State of Neurology Report, neurological disorders now affect more than 40% of the planet’s population—over 3 billion people.

Among the ten most prevalent neurological diseases leading to death and disability as of 2021 are: stroke, neonatal encephalopathy, migraine, Alzheimer’s disease and other dementias, diabetic neuropathy, meningitis, idiopathic epilepsy, neurological complications from preterm birth, autism spectrum disorders, and nervous system cancer.

The WHO notes that low-income countries have over 80 times fewer neurologists compared to wealthy nations, despite the high prevalence of these diseases. Many of them lack national plans, targeted funding, and sufficient trained specialists.

“More than one in three people worldwide lives with a condition that affects the brain. We must do everything possible to improve access to quality care,” commented Dr. Jeremy Farrar, WHO Assistant Director-General.
“Many of these conditions can be prevented or effectively treated, but in many regions, medical services are inaccessible, and patients face stigma and financial difficulties.”

Key findings from the report:

• Only 32% of WHO member states have a national policy for neurological disorders, and only 18% have targeted funding.
• Only 25% include neurological diseases in basic health insurance packages. Vital services such as stroke units, pediatric neurology, rehabilitation, and palliative care are often missing outside of major cities.
• In low-income countries, the number of neurologists is up to 82 times lower, making timely diagnosis and treatment unattainable for millions of patients.
• Only 46 countries provide services for caregivers, and 44 offer legal protection for them, leaving informal caregivers—predominantly women—without support.
• The lack of sufficient data, research, and investment hinders effective planning and policy decisions.

The WHO warns that without strong national policies and adequate funding, health systems remain fragmented and unable to meet the growing needs of patients with neurological diseases.

The organization calls on governments to set brain health as a strategic priority, ensure sustainable funding, and build the necessary capacity for diagnosis, treatment, and support for people living with neurological disorders.