Every organism has a life span which is highly characteristic.

每个生物体的生命周期都极其独特。

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Unwind with meditation. Stress is the root cause of most of the diseases that shorten our life span. Meditation is a powerful way to manage your stress level.

放松并冥想。压力是造成绝大多数缩短我们生命的疾病的根源。冥想是控制你压力水平的有效方法。

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A bloom may last several weeks, but the life span of any individual phytoplankton is rarely more than a few days.

水华可能会持续数周，但任何单个浮游植物的寿命很少会超过数天。

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So one of the reasons there is a huge increase in life span is because people aren't dying of things that they would have in prior years.

寿命范围显著增长的一个原因是,人们不再死于,以前那些致死的东西

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Nor is our longer, healthier life span a guarantee.

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Suddenly you know that your child is facing numerous, difficult challenges and a shortened life span.

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There is a high mortality rate -- with an average life span of only 47 -- minimal infrastructure and limited tools for economic development.

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