WHO says up to 45% of dementia cases could be prevented with lifestyle changes

The World Health Organization released updated, evidence‑based guidelines on dementia risk reduction, estimating that roughly 45 % of dementia cases are linked to modifiable factors such as tobacco use, excessive alcohol consumption, physical inactivity, social isolation, air pollution and non‑communicable diseases like hypertension and diabetes. The guidance urges countries to integrate preventive measures across health services, promote cognitive training, social engagement and healthier diets, and to address environmental exposures.

Dementia specialist Dr Helena Popović reinforced the message, warning that sugary soft drinks act as a “bullet to the brain” and that even modest alcohol intake can shrink brain tissue. She highlighted the harms of processed foods, artificial sweeteners and chronic loneliness, recommending whole‑food diets rich in berries, leafy greens, nuts, olive oil and oily fish, along with regular strength training and mental‑stimulating activities to lower risk.