一项对患有高血压的实验鼠的研究显示，添加了辣椒粉的辛辣食物含有一种天然的可以降低血压的化学成分。
Spicy food flavoured with hot chilli peppers contains a natural chemical ingredient that may lower blood pressure, according to a study on a strain of laboratory rats with hypertension.
传统的热狗使用的是一种叫硝酸钠的人工合成的添加剂，而天然或有机型的热狗则是用香芹粉或香芹汁来为产品防腐。
Conventional hot dogs use sodium nitrite, the synthetic version of the additive, while natural and organic versions use celery powder or celery juice to preserve their product.
为何如此：滑石粉是粉笔和婴儿爽身粉的组分之一，它是天然的蚂蚁排斥物。
Why This Works: Talcum powder, an ingredient in both chalk and baby powder, is a natural ant repellent.
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