Mix things up and try some different activities, like biking or swimming, so you can build fitness without having to run all the time.

可以穿插一些其他的不同的活动，像骑车或者游泳，也可以构筑健康而不用总是通过跑的方式。

youdao

As you know, I don't like swimming at all.

正如你所知道的，我一点儿也不喜欢游泳。

youdao

These chemicals speed up your heart-rate, shut down your immune system, digestion, and reproductive systems, allowing you to use all the energy that would usually go toward, say, digesting a granola bar for swimming like hell to the beach.

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