But as we age, our cells age, too.

但随着年龄渐长，我们的细胞也会变老。

In other words, some cells age faster than others.

也就是说有的细胞比其他的老化更快。

Shortening with each cell division, they help determine how fast a cell ages.

随着细胞分裂的缩短，它们有助于确定细胞衰老的速度。

That's because it has even been associated with shortened telomeres, the shoelace tip ends of chromosomes that measure a cell's age.

因为它甚至会令你的染色体终端变短，而染色体的这个端粒恰恰影响着细胞的寿命。