Coffee's Brain Boost: 2-3 Cups Daily May Cut Dementia Risk by 35%

• Drinking two to three cups of coffee daily may significantly reduce dementia risk, with no extra benefit from more.
• A 43-year study of 131,821 US health professionals found moderate coffee/tea drinkers had lower dementia rates.
• The protective effect was strongest for those 75 or younger, reducing risk by 35% with 250mg-300mg caffeine daily.
• Caffeine may protect the brain by blocking adenosine, reducing inflammation, and regulating blood sugar.
• Decaffeinated coffee drinkers showed faster memory decline, possibly due to underlying health issues prompting the switch.