根据哈佛的130,000名卫生专业人员的研究,每天饮用2-3杯咖啡咖啡或1-2杯茶与18%的痴呆风险有关。 Drinking 2–3 cups of caffeinated coffee or 1–2 cups of tea daily is linked to an 18% lower dementia risk, according to a Harvard study of 130,000 health professionals.

哈佛对130,000多名卫生专业人员进行的一项大型研究发现,每天饮用两到三杯咖啡或一到两杯茶与降低18%的痴呆风险有关,其好处表现为认知下降速度放慢,精神表现改善。 A large Harvard study of over 130,000 health professionals found that drinking two to three cups of caffeinated coffee or one to two cups of tea daily is linked to an 18% lower risk of dementia, with benefits seen in slower cognitive decline and better mental performance. 未在无咖啡因中观察到保护效应,表明咖啡因发挥着关键作用。 The protective effect was not observed with decaf, suggesting caffeine plays a key role. 虽然调查结果表明相关性而非因果关系,但它们补充了证据,表明中度摄取咖啡因可支持长期的大脑健康。 While the findings show correlation, not causation, they add to evidence that moderate caffeine intake may support long-term brain health.