Drinking two to three cups of caffeinated coffee daily was associated with a 35% lower risk of developing dementia in adults under 75, according to a large long-term study published in JAMA. The research followed 131,821 nurses and healthcare professionals for up to 43 years, beginning when participants were in their early 40s.
Over the study period, 11,033 participants (about 8%) developed dementia. The findings were reported by researchers from Loughborough University, Harvard T.H. Chan School of Public Health, and other institutions.
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