题目内容：
Colours do influence our moods there is no doubt about it．A yellow room makes most people feel more cheerful and more relaxed than a dark one；and a red dress brings warmth and cheer to the saddest winter day．On the other hand，black is depressing．A black bridge over the Thames River，near London．used to be the scene of more suicides than any other bridge in the area until it was repainted green．The number of suicide attempts immediately fell sharply；perhaps it would have fallen even more if the bridge had been done in pink or baby blue．
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