When scientists had their subjects play a game in which they won money by deceiving their partner, they noticed the negative signals from the amygdala began to decrease.

当科学家们让实验对象玩一个通过欺骗搭档来赢钱的游戏时，他们注意到来自杏仁核的负面信号开始减少。

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The population began to decrease.

人口开始减少。

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As time went on, so their hopes began to decrease.

随着时间的推移，他们的希望开始变得越来越渺茫了。

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At the same time, privately-held retail stores had been growing since last summer, but the rate of their revenue growth (as a percentage) flat-lined and began to decrease month to month.

FORBES: (Slightly) Decreasing Confidence All Around

The suicide rate then rose gradually through the 1960s and 1970s, but in the 1980s it began to decrease, continuing to decline steadily until 2000. (Anyone recall what happened to the economy in 2000?) From 2000 to 2007, the last year for which the researchers had data, the suicide rate was on the rise.

FORBES: Suicide and Financial Crisis: How Real Is the Risk?