US EditionWhat to Know About a New Study on Coffee, Tea, Caffeine and Dementia Risk
- February 9, 2026, researchers found that moderate caffeinated coffee and tea intake from over 130,000 participants was associated with a lower dementia risk, according to a study published in JAMA.
- Researchers analysed repeated dietary data from food-frequency questionnaires every 2–4 years across NHS and HPFS, finding caffeine and polyphenols may reduce neuroinflammation and oxidative stress.
- Over follow-up of up to 43 years, 11,033 participants with dementia were identified, and NHS objective cognitive testing showed small improvements in TICS and global cognition scores.
- The authors cautioned the analysis was observational and not a randomized trial, decaffeinated coffee showed no dementia risk reduction, and generalizability is limited by predominantly White health professionals and dementia classification from death records and medical diagnoses.
- Clinicians were urged to individualize counseling and emphasize broader prevention—exercise, vascular risk control, sleep, diet—rather than prescribing caffeine, for those who already drink and tolerate it, Zhang said.
31 Articles
31 Articles
Many people start their day with coffee or tea. A long-term study now shows that those who regularly drink caffeine in moderation are slowing down spiritually.
A new study, conducted by researchers from Mass General Brigham, Harvard T.H. Chan School of Public Health and the Broad Institute of MIT and Harvard, brings good news to coffee or tea lovers. The daily moderate consumption of these drinks, ranging from 2 to 3 cups of coffee and 1 to 2 cups of tea, reduced the risk of dementia, delayed the cognitive decline and preserved the cognitive function. The results were published in the JAMA scientific j…
C? who drinks it almost still with his eyes closed and who turns it into a break of relaxation in the middle of the morning, who prefers it strictly bitter and who does not know how to give up ...
Coffee and Tea Can Cut Dementia Risk, but Not If It's Decaf
A study of more than 130,000 people found that caffeinated coffee and tea can lower one's dementia riskStock image of a woman pouring coffee in the morning. GettyNEED TO KNOWA new study of more than 130,000 people, conducted over 40 years, found that caffeinated coffee and tea “was associated with a lower risk of dementia”The study, published in the Journal of the American Medical Association, found that coffee can cut dementia risk by nearly 20…
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