Telomerase helps maintain the length of telomeres in cells.

端粒酶有助于维持细胞中端粒的长度。

Telomeres protect the ends of chromosomes, which shorten each time a cell divides.

端粒保护着染色体的末端，每次细胞分裂都会缩短。

Telomeres are unique repeated sequences.

端粒是一类特殊的重复序列。

Telomerase is the enzyme that builds telomeres.

而端粒酶顾名思义，就是生成端粒的那种酶。

If the telomeres are shortened, the cell ages.

如果端粒变短，细胞就会老化。

Telling Tale of Telomeres, Exercise, Health, and Aging.

端粒，运动，健康和衰老。

So, more running resulted in (slightly) shorter telomeres.

所以，跑的越多导致端粒越短（一点点）。

When telomeres get too short, cells can no longer divide;

TA Sciences说，当端粒太短的时候，细胞就不能再了；

Telomeres and Cardiovascular Disease - Circulation Research, 2004.

端粒与心血管疾病-循环研究，2004。

Telomeres are at the ends of your chromosomes, protecting the DNA. Most telomeres shrink every time their cell divides.

端粒位于染色体的末端，保护着DNA。大多数的端粒在细胞分裂时都会收缩。