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Well, when I tried communing with nature my hands got all scratched – I got stung by nasty creepy-crawlies – and I got soil up my nose. I didn’t enjoy it at all.
我也试过与自然亲密接触，结果我的手到处是刮痕，还被讨厌的爬虫咬，鼻子上也都是土。我实在不喜欢。
Try wearing protective clothing next time – and maybe a nose plug too!A creepy-crawly is a small insect, by the way.
下次穿上防护衣试试，也许你还得带个鼻塞！爬虫是一种昆虫。
So do you like getting your hands dirty, Sophie?
那你喜欢手上弄得脏兮兮的吗？
Yes, I love it. And it turns out there might be a good reason for this.Dr Christopher Lowry from the University of Colorado conducted an experiment to test whether soil gives us a natural high – meaning to make us happy without taking drugs. He injected a bacterium commonly found in soil into mice to see what affect this would have on them.Let’s hear what he said in this BBC programme.
喜欢啊。而且事实证明这是有原因的。科罗拉多大学的Christopher Lowry教授做了一个实验，测试土壤是否会让我们自然而然地开心，也就是不使用药物而感到兴奋。他将土壤中常见的一种细菌注入小白鼠体内，观察会对其产生什么作用。我们来听听他在BBC节目中所说的。
Rodents like mice and rats are very good swimmersand it was found many years ago that if you treat animals with antidepressant drugsand then put the animals in just a beaker of water it would cause the animals to swim for longer periods of time.
像老鼠这样的啮齿类动物，都非常擅长游泳。几年前实验发现，如果给老鼠注射抗抑郁药，然后将其放入盛水的烧杯中，老鼠会游很长时间。
After injecting the mice with the bacterium Dr Lowry placed them in a cup of water.
给老鼠注射这种细菌后，Lowry教授将其放入盛水的杯子中。
These mice that had been injected with bacterium swam during a 6-minute test for a longer period of time than animals that just got a placebo.
这些老鼠都被注射了细菌，相比其他注射安慰剂的老鼠，前者在六分钟测试内游的时间更长。
So the bacterium had a similar effect on the mice as an antidepressant drug might.When we dig in soil we ingest – or absorb – the bacterium through our lungs or cuts in our skin. A placebo, by the way, is a substance with no physical effects that is used when testing a drug.So here one group of mice were injected with the bacterium and another group were injected with the placebo. And since the mice seemed happier when treated with soil bacteria, there’s a good chance we would too.
所以这种细菌在老鼠身上所产生的作用和抗抑郁药类似。当我们挖土时，我们会通过肺吸入这种细菌，或者通过皮肤上的创口进入体内。顺便说一下安慰剂是一种在测试药物时不会产生任何物理反应的物质。所以一组老鼠被注射细菌，另一组被注射安慰剂。注入土壤细菌的老鼠似乎更加开心，所以我们人类也会这样。

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