同样，如果一种植物或动物没有留下任何可以繁殖的后代，它就不能把所有的能量浪费在使自己变得更强壮上，因为这是最可能走向灭绝的方式。
Similarly, a plant or animal cannot squander all its energy on growing a big body if none would be left over for reproduction, for this is the surest way to extinction.
例如，研究发现了饮食变化可以减缓炎症，或使体内环境不适于癌细胞繁殖的证据。
Studies have explored evidence that dietary changes can slow inflammation, for example, or make the body inhospitable to cancer cells.
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