Smoking and heavy drinking increase your likelihood of stomach and esophageal cancers. But Swedish researchers have identified a surprise risk factor: chronic heartburn.

• 抽烟和酗酒会增加胃癌和食道癌的罹患率,而瑞典研究学者们却发现了另一个令人诧异的罹患因素:长期胃灼热。