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Worldwide Dementia Patients Set to Triple by 2050, Study Says

  • Cases to reach 153 million in 2050, up from 57 million in 2019
  • Mounting burden raises the stakes for policy, therapies

Dementia will ravage the minds of 153 million people globally in 2050, about three times more than in 2019, according to a study that shows the rising stakes for public-health policy along with successful therapies from drugmakers.  

The tripling of cases of cognitive illnesses that include memory-robbing Alzheimer’s disease is tied to national trends in risk factors including obesity, diabetes, low education and smoking, according to the Global Burden of Disease study. Published Thursday in the Lancet Public Health journal, the analysis looked at 195 of the world’s countries and territories.