WHO Updates Dementia Prevention Guidelines, Emphasizing Lifestyle and Medical Management

The World Health Organization (WHO) has refreshed its dementia prevention guidelines, underscoring the critical role of a healthy lifestyle and proper management of medical risk factors in reducing dementia risk. WHO Director-General Tedros Adhanom Ghebreyesus highlighted that up to 45% of dementia risk can be attributed to modifiable factors.

The new recommendations build upon the 2019 guidelines, incorporating recent scientific insights. Core preventive measures now include maintaining a balanced diet, engaging in regular physical exercise, and fostering social interactions. Additionally, the WHO acknowledges the preventive benefits of cognitive stimulation activities such as reading and playing games—practices that were not previously endorsed due to insufficient evidence.

Hearing aids are also recommended to combat cognitive decline in individuals with hearing loss, a significant update that expands prevention strategies beyond lifestyle changes. However, the WHO remains skeptical about vitamin supplements like B, E, or omega-3 fatty acids for dementia prevention unless deficiencies are diagnosed.

The guidelines also stress managing medical conditions linked to increased dementia risk, such as hypertension, diabetes, obesity, sleep disorders, and depression. These recommendations reflect an evolving understanding of dementia's complex risk profile, with no current medication capable of curing the disease.

Currently, approximately 57 million people worldwide live with dementia, a figure expected to rise without effective preventive measures. The WHO's updated guidance aims to empower individuals and healthcare providers to address these risk factors proactively.