求解释一段英语阅读理解（摘自新标准大学英语快速阅读1的UNIT2 PASSAGE4)

求解释一段英语阅读理解（摘自新标准大学英语快速阅读1的UNIT2 PASSAGE4)
这篇英语阅读理解的题目是“fourteen ways to lose weight after the holidays”,文章列了十四个小标题,其中有个小标题“start with 10％”以及小标题以下的内容我不理解,求大神解释~~~内容如下：
People who start by focusing on achieving just 10% of their long-range weight-loss goal may have the best chance of ultimate success.Losing those first pounds creates the biggest health gains,too,since stomach fat is usually the first to come off and is the most dangerous.
与这段文字相配的还有一个题目,要求判断对错：You are expected to design a practical timetable to fullfill 10% of your overall weight-losing aim at a time.答案是错,同样不明白,求解释~~~~