The shingles vaccine may reduce the risk of dementia

	The shingles vaccine may reduce the risk of dementia(economist.com)
	246 points by saikatsg 21 hours ago \| 195 comments
	tl;dr: Summary not available
	HN Discussion: ↑Supporting evidence from UK study with age-cutoff natural experiment strengthens the finding ↑Personal decision to get vaccine early based on the article's implied benefits ↓The finding is spurious due to confounding from fewer hospital visits ~Multiple replications show consistent but modest effect sizes across countries ↑Broader immune stimulation from vaccines may reduce dementia, suggesting alternative research paths