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Leonard Hayflick, Who Discovered Why No One Lives Forever, Dies at 98

A biomedical researcher, he found that normal cells can divide only a certain number of times before they age — which, he said, explained aging on a cellular level.

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FDA Classifies Egg Recall as Class I for Highest Health Risk

Nearly 20 million eggs were recalled in July over salmonella concerns. The new classification signals a “reasonable probability” of “serious...

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