The DEETS In this study, 16 healthy and active adults completed two randomized trials.

研究细节在这项研究中，16 名健康且活泼的成年人完成了两项随机测试。

Researchers reviewed data from 17 randomized controlled trials and published the results Friday in the Cochrane Database of Systematic Reviews journal.

研究人员评估了17项随机对照试验的数据，并于12月8日在《Cochrane系统评价数据库》杂志上发表了研究结果。

But Cronenwett says studying cold water immersion with a kind of scientific study known as a randomized controlled trial is difficult.

但克罗南维特说，用一种被称为随机对照试验的科学研究方法来研究冷水浸泡是困难的。

One randomized trial followed 15 kids who spent time in an equine therapy group, and they learned things like grooming and riding.

一项随机试验追踪15名参与马治疗小组的孩子，他们学到诸如理毛和骑马之类的知识。

Instead of just studying people who drank coffee or didn't, he set up a randomized trial to study coffee's impact on your heartbeat.

他没有仅仅研究喝咖啡或不喝咖啡的人，而是进行了一项随机试验研究咖啡对心跳的影响。

There have been randomized control trials putting them head to head, intermittent fasting to limit your calories and no time restriction but portion control.

已经有随机对照试验，让他们正面交锋，间歇性禁食来限制你的卡路里，没有时间限制，而是控制份量。

Now, just to be clear, no one has done any randomized clinical trials to determine whether regular tickling improves mental health outcomes in people.

现在，为了澄清这一点，还没人做过任何随机的临床试验来确定，经常接受这种刺激能否改善人们的心理健康状况。

Now to get around that, in real life, we would run a randomized controlled trial.

现在为了解决这个问题，在现实生活中，我们将进行一项随机对照试验。

And that still leaves us with basic science, it leaves us with randomized clinical trials which are very hard in nutrition, and they're very expensive.

那么留给我们的方法就只剩下基础科学，随机临床试验（非常昂贵且很难应用于营养研究）。

The other point is that these trials are typically not randomized trials, meaning that everybody that participates gets the drug.

另一点是这些试验通常不是随机试验，这意味着参与的每个人都会得到药物。

And to date, 45 million needle procedures had decreased pain, and over 80 randomized controlled trials, independently, all around the world, have been published.

迄今为止，已有 4500 万次针刺手术减轻了疼痛，并且世界各地已发表了 80 多项独立的随机对照试验。

(Cheers and applause) At about 30 randomized controlled trials in, one of my colleagues came to meand confided that he was in opioid recovery.

（欢呼声和掌声）在大约 30 项随机对照试验中，我的一位同事透露说他正在阿片类药物恢复期。

But again, this is from looking at populations, these aren't randomized controlled trials where we pick a set of people, we make them live in these places and we see how long they live.

但同样地，这来自于观察人群，这些不是随机对照试验，我们选择一组人，我们让他们住在这些地方，我们看看他们能活多久。

A handful of researchers did try to do randomized controlled trials—the gold standard for testing medical interventions—to see if low saturated fat or low cholesterol diets actually helped prevent heart attacks and deaths, as the hypothesis predicted.

少数的研究者设法随机控制测试——医疗干预测试的黄金法则——来看低饱和脂肪和低胆固醇饮食是否能帮助预防心因性猝死，如假设预测的一样。

However, I should point out that beyond our study, there have been a couple of randomized trials looking at artificial sweeteners, including Erythritol for weight reduction or improvement in blood sugar, and many times they have not shown beneficial effects.

然而，我应该指出的是，除了我们的研究，还有一些随机试验研究了人工甜味剂，包括赤藓糖醇对减重或改善血糖的作用，但很多时候，都没有显示出有益的效果。

If someone suffers from insomnia, we have found here in a randomized trial that there are meaningful effects on sleep — to such a degree that it really should motivate a good trial off of coffee to really try to tackle insomnia.

如果有人患有失眠症，我们在这里的随机试验中发现咖啡对睡眠有巨大影响——在这样的程度上，它确实应该促使人们好好试验一下咖啡，以真正尝试解决失眠。

That's the startling outcome of a randomized trial that asked young, overweight adults who typically slept less than six and a half hours to try to sleep about eight and a half hours a night for two weeks.

这是一项随机试验的惊人结果，该试验要求通常睡眠时间少于六个半小时的年轻超重成年人尝试在两周内每晚睡大约八个半小时。