That may explain why in that new Harvard study, those drinking decaf coffee but not tea beverages also showed a reduced diabetes risk, though it was half as much as those drinking caffeinated coffee.

• 这或许可以解释哈佛的那项新研究，那些饮用的脱咖啡因的咖啡但不是茶茶饮料的人为什么也会减少的患糖尿病风险，即使它与普通咖啡是如此相似。