英语翻译little is known about the genetic and environmental cont

对遗传因素和环境因素如何作用到早期皮质醇以及其在环境变化下所产生的功能我们知之甚少.
再问： Genetic and environment contributions to cortisol activity were estimated for high (three risk factors or more: 21.3% of the sample) versus low FA. 谢谢，再帮下把~
再答： 遗传因素和环境因素对皮质醇的活性影响非常大（21.3%的样本显示：有三种或者更多的危险） FA不太清楚是什么，sorry啊