<p>A massive trailer<s>s have</s> <span style="color: #ee2323;">has </span>been  sent to  parts of <s>world of</s> <span style="color: #ee2323;">the</span> <span style="color: #ee2323;">rural </span>south <span style="color: #ee2323;">where </span>medical researchers are testing the heart and  the  lung functions of some 5 thousand residents. The study has shown <s>world</s> <span style="color: #ee2323;">the rural </span>populatiolns  in the US are  unhealthier and  have low life expectancy than  Americans in  urban areas. And researchers <span style="color: #ee2323;">are </span>try<span style="color: #ee2323;">ing </span> to figure out </p><p><span> exacltly why and how to change that . So public health officals using  <span style="color: #ee2323;">a </span> 52 foot  <span style="color: #ee2323;">long </span>trailers <span style="color: #333333; background-color: #ffffff;" data-ke-size="size16">filled with instruments to</span></span></p><p>examine calsium <span style="color: #ee2323;">in the </span><s>,</s> arteries,  structure of heart and lung capacity to  analyze what's going on.</p><p>I'm Jackie Quinn</p>
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