What it is saying though that we need to perhaps first ask whether exercise is,
or lack there of is the underlying reason for the experience.
Now why should not we do away if the results are very similar between exercise and medication?
Why shouldn't we do away with medication? Here is why.
You see, let's say…Let me just draw this circle.
No. Let's say this is the total population of people who are depressed.
We know that Zoloft, or antidepressant medication helps about 60 percent of them.
And we know that exercise also helps 60 percent. However, it is not the same 60 percent.
There is overlap by definition, because it is more than 50 percent.
But it doesn't help the same people. So there are people who are only helped by medication;
there are people who are only helped by exercise; and there are people who are helped by both.
So it's not saying let's do away with medication. It is important. It helps.
所以不能说 废除服药吧 它很重要 它确实有用
However it also says "let's try exercise, because I may be helped by exercise and not medication, or I may be helped by both.
但结果同时显示 "试试锻炼吧 因为我有可能是得益于锻炼而不是服药 或者得益于两者
Here is the clincher though in the study: so what we are looking for, as I look in all these studies,
研究的关键在于 我们在看这些研究时 想搞清楚的是
is the relapse rates, meaning 6 months after the end of the study when we no longer give medication,
复发率 实验结束半年后 我们不再让他们服药
when we no longer push the participants to exercise three times a week at least, what happens after 6 months?
广东快乐十分不再强迫被试者锻炼 每周至少三次 半年后如何了呢