• Caffeine links both coffee and tea to lower dementia risk Facebook Twitter LinkedIn Reddit Flipboard Email After an analysis of health data from over 131,000 people tracked for up to 43 years, researchers found that drinking coffee and tea daily seems to guard against the development of Alzheimer’s disease and other forms of cognitive decline. • To reach this conclusion, investigators from Harvard University, Mass General Brigham, MIT, and other institutes looked at data that was tracked through two large, long-term health studies. • First was theNurses Health Studywhich tracked data from female registered nurses from 1976 through 2023, and the second was theHealth Professionals Follow-up Studywhich gathered health data from male health professionals from 1986 through 2023. • From these large cohorts, the researchers settled on 131,821 participants to include in a meta-analysis. • They arrived at this number by using only data that included dietary records, excluding people who had any kind of major disease at the start of the study, and eliminating those who reported caloric intake outside of biologically plausible ranges. • They also cut anyone who didn’t report on their intake of caffeinated beverages.
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