多运动也许真的可以令你老得慢_BEC初级作文

多运动也许真的可以令你老得慢

我们中的一些人对细胞内部的各个结构并不都那么了如指掌，那么，打个比方来解释一下，端粒是DNA链末端的小帽子，就像鞋带上的塑料箍一样。科学家们认为，它们可以防止DNA在细胞分裂和DNA复制过程中受到损伤。

As a cell ages, its telomeres naturally shorten and fray. But the process can be accelerated by obesity, smoking, insomnia, diabetes and other aspects of health and lifestyle.

随着细胞的衰老，其端粒自然也会磨损和缩短。但这一过程可能会因肥胖、吸烟、失眠、糖尿病等健康和生活方式问题而加快。

In those cases, the affected cells age prematurely.

在这种情况下，受影响的细胞就会过早衰老。

However, recent science suggests that exercise may slow the fraying of telomeres. Past studies have found, for instance, that master athletes typically have longer telomeres than sedentary people of the same age, as do older women who frequently walk or engage in other fairly moderate exercise.

然而，最近的科学研究表明，锻炼身体可以减缓端粒的磨损。例如，既往的研究发现，运动健将们的端粒通常比同龄的久坐者更长，在经常步行或从事其他适度运动的老年妇女中也有同样的现象。

But those studies were relatively narrow, focusing mostly on elderly people who ran or walked. It remained unclear whether people of different ages who engaged in a variety of exercises would likewise show effects on their telomeres.