A new study shows that people with generalized anxiety disorder unconsciously label harmless things as threats, which may serve to further their anxiety.

一项新研究表明患有广泛性焦虑障碍的人会无意识地将无害的东西当做威胁对待，进一步加深他们的焦虑。

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Scout understands there is strength in being gentle. He treats others as he wants to be treated. He does not hurt or kill harmless things without reason.

童子军应理解文明的力量。己所不欲，勿施于人。不无故伤害或杀死无害的生物。

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Natural selection can achieve many things, but it is hemmed in. Even harmless, random mutations can block its path.

自然选择可以实现很多东西，它还是会受到一定的束缚，即使是无害的，随机的突变都会阻碍进化的途径。

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Or harmless things, depending on how mean the person who wrote the virus is.

BBC: A - Z: Hack attack

We human beings have a tendency to perceive some relatively harmless things as dangerous while we ignore dangerous things we ought to be worrying about.

FORBES: Boston Bombing: Perceived Danger And The Public Safety

"We have seen an epidemic of excuses wrongly citing health and safety as a reason to prevent people from doing pretty harmless things with only very minor risks attached, " he said.

BBC: Health and safety 'excuse' for unpopular decisions