She interviewed slimmers who had failed to stay the course to find out why they had given up .

她采访了半途而废的减肥者，想打听他们放弃的原因。

So many would-be slimmers fail to stay the course and fall by the wayside .

有很多想身材苗条的人没能坚持到底而中途败下阵来。

For it seems the most successful slimmers chalk up a marathon a week , according to research .

因为研究表明，最成功的瘦身人士每周坚持走一次“马拉松”。

This deep-seated drive to eat could also explain why so many slimmers succumb to temptation , no matter how strong their initial resolve to lose weight .

这种根深蒂固的驱动力可能也解释了无论当初减轻体重的决心是多么坚决，那么多减肥者都会屈服于诱惑的原因。