60秒科学:洗洗手再做决定吧！

We’ve all agonized² over difficult decisions. Go to college or backpack around Europe? Buy or rent? Apple pie or death by chocolate?

Well, agonize¹ no more—because a study in the journal Science suggests that simply washing your hands after making a tough choice can keep you from second-guessing.

Washing your hands of a situation is a powerful metaphor³. But scientists got to wondering, could it be something more? Previous studies had shown that washing can remove the guilt⁴ people feel about past misdeeds. But is that because the brain somehow links physical and moral cleanliness? Or because ablution washes away the past?

To find out, psychologists removed any moral implications from a forced decision. They asked students to choose between things like a pair of CDs or two flavors of jam.

They found that subjects who washed their hands right after making their choice didn't look back. They made peace with their picks and moved on—whereas those who didn't have access to soap spent more time trying to justify⁵ which jam they took home.

So if you want to avoid rethinking the past, lather⁶ and rinse⁷. And if necessary, repeat
 

1 agonize   

v.使受苦，使苦闷

参考例句：

• Why do you agonize yourself with the thought of your failure?你为何总是对于你的失败念念不忘而自我折磨呢？
• There's no reason to agonize over telling people you're job hunting.没有理由为告诉他人你正在找工作而感到苦恼。

2 agonized   

v.使（极度）痛苦，折磨( agonize的过去式和过去分词 )；苦斗；苦苦思索；感到极度痛苦

参考例句：

• All the time they agonized and prayed. 他们一直在忍受痛苦并且祈祷。 来自《现代英汉综合大词典》
• She agonized herself with the thought of her loss. 她念念不忘自己的损失，深深陷入痛苦之中。 来自辞典例句

3 metaphor   

n.隐喻，暗喻

参考例句：

• Using metaphor,we say that computers have senses and a memory.打个比方，我们可以说计算机有感觉和记忆力。
• In poetry the rose is often a metaphor for love.玫瑰在诗中通常作为爱的象征。

4 guilt   

n.犯罪；内疚；过失，罪责

参考例句：

• She tried to cover up her guilt by lying.她企图用谎言掩饰自己的罪行。
• Don't lay a guilt trip on your child about schoolwork.别因为功课责备孩子而使他觉得很内疚。

5 justify   

vt.证明…正当(或有理)，为…辩护

参考例句：

• He tried to justify his absence with lame excuses.他想用站不住脚的借口为自己的缺席辩解。
• Can you justify your rude behavior to me?你能向我证明你的粗野行为是有道理的吗？

6 lather   

n.(肥皂水的)泡沫，激动

参考例句：

• Soap will not lather in sea-water.肥皂在海水里不起泡沫。
• He always gets in a lather when he has an argument with his wife.当他与妻子发生争论时他总是很激动。

7 rinse   

v.用清水漂洗，用清水冲洗

参考例句：

• Give the cup a rinse.冲洗一下杯子。
• Don't just rinse the bottles. Wash them out carefully.别只涮涮瓶子，要仔细地洗洗里面。