TLDRA recent study published in the Journal of the American Medical Association suggests that drinking two to three cups of caffeinated coffee or one to two cups of caffeinated tea daily could lower the risk of dementia and improve cognitive performance. The research, based on health records of over 130,000 people over 40 years, found a 15-20% lower risk of dementia among regular coffee and tea drinkers. However, the study cannot prove that caffeine is the direct cause, as other factors may also play a role. The researchers emphasize that maintaining a healthy lifestyle, including regular exercise and a balanced diet, is crucial for better brain health.

Source: The Guardian February 09, 2026 18:16 UTC