不过随着人的衰老，端粒会丧失保护的能力。

As we age, though, these caps lose their ability to protect.

youdao

这里有个基本情况，请切记：无论如何，端粒会随着人的衰老而缩短。

Here's the basic scenario to keep in mind: Telomeres will shorten with age no matter what.

youdao

每次分裂后，端粒变短一段时间后可能发生的一件事是染色体上的基因片段会断裂。

So after each division, the telomeres get shorter and one of the things that may happen after a while is that pieces of the genes themselves get broken off the Chromosomes.

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