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Even Moderate Drinking Raises Dementia Risk, Study Finds

10/16/2025

Summary

Story summary

Alcohol consumption increases dementia risk, according to a BMJ Evidence-Based Medicine study analyzing over 559,000 older adults in the United States and United Kingdom.
Lead author Dr. Anya Topiwala said even 1-3 servings weekly raise risk, contradicting beliefs about moderate drinking.
Using genetic data from about 2.4 million individuals, the study concludes that alcohol exposure, not lifestyle factors, drives dementia risk and that reducing intake may help prevent dementia.

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Story summary

Alcohol consumption increases dementia risk, according to a BMJ Evidence-Based Medicine study analyzing over 559,000 older adults in the United States and United Kingdom.
Lead author Dr. Anya Topiwala said even 1-3 servings weekly raise risk, contradicting beliefs about moderate drinking.
Using genetic data from about 2.4 million individuals, the study concludes that alcohol exposure, not lifestyle factors, drives dementia risk and that reducing intake may help prevent dementia.