The existing practices are retained during times of stress.

在多次的压力下，现有的实践仍旧保持着。

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Stress also suppresses the generation of new nerve cells in the brain, and causes the “remodelling” of existing ones.

压力也抑制了大脑中新的神经细胞的产生，而且它还导致了已经存在的细胞发生结构性的改变。

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Stress also suppresses the generation of new nerve cells in the brain, and causes the "remodelling" of existing ones.

还会抑制新的神经细胞在大脑中的产生，并导致现有大脑的“重塑”。

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The person who initially found the envelope is being treated at a Phoenix-area hospital for a pre-existing condition and stress from the event, and others in the immediate vicinity were examined as well.

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Lewin, who works with startups and developers worldwide, had much the same perspective, but with a stress on keeping the existing business from developing tunnel vision.

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Rebecca Wood, chief executive of the Alzheimer's Research Trust, said it was important to stress that the study only focussed on people with pre-existing memory conditions.

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