It's another method of estimating the genetic

这是另一种对遗传贡献
contributions to this issue.

的估测方法
So genes are a player to be sure.

所以基因肯定是有影响的
I'm going to skip over this and conclude about some of the genetics.

这点我们跳过这点对遗传学做个总结
Those of you who voted for 25% to 40% were correct.

选择25%到40%的同学是正确的
That is the amount of variance in the population

这就是人类受遗传因素影响的
that you can explain by genetics.

具体数量
Now the question is, is that a lot or a little?

现在的问题是影响是大还是小呢
Depends on your perspective.

这取决于你的观点
If the culture believes that body weight

如果你认为体重
is completely under personal control,

完全是自我控制的
or driven by environmental factors,

或者是环境因素决定的