Eggs: Properly refrigerated eggs should last at least 3-5 weeks after the sell-by date, according to Professor Joe Regenstein, a food scientist at Cornell University.

鸡蛋：康奈尔大学的食品科学家Joe Regenstein称，恰当冷藏的鸡蛋至少可以保存至保质期后3 - 5个星期。

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The practice salting of meat helps fight bacteria, but probably not more than other modern antimicrobial techniques, Regenstein said.

CNN: Fasting carries risk of overeating

In a practical sense, this tradition forces people to make their meals more diverse and plan them out more carefully, Regenstein said.

CNN: Fasting carries risk of overeating

As a part of a religion, fasting teaches discipline, Regenstein said.

CNN: Fasting carries risk of overeating