Across the studies, people who drank three or more cups of coffee a day were 16 per cent less likely to develop kidney cancer than those who averaged less than a cup per day.

• 之前的研究显示，每天喝三杯或三杯以上咖啡的人比平均每天喝咖啡不足一杯的人患肾癌的风险低16%25；