Some of it may be the changes your body's going through: All those hormones you hear so much about can cause mood swings and confused emotions.

这可能是你身体经受的一些改变造成的：你听过的很多激素都会导致情绪变化或者困惑的情感。

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Using a flood of new tools and technologies, each of us now has the ability to easily collect granular information about our lives—what we eat, how much we sleep, when our mood changes.

运用新的工具和科技，我们现在可以轻松地获得关于身体方面的信息---我们吃了什么，我们睡了多长时间，我们的情绪什么时候发生了变化。

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It always changes from one telling to the next depending on the voice and mood of the storyteller, the place of its telling, the response of the audience.

故事内容总会根据下一个说书者的声音与表情、说书地点还有观众的反应不同而改变。

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The app, which would activate when it recognized the user's voice, would provide the patient and psychologist a more complete record of changes in emotion and mood, allowing the patient to get a better sense of their emotional triggers.

CNN: STORY HIGHLIGHTS

Lying behind Ms Verdonk's decision are two changes in the Dutch mood since fears over the compatibility of Islam and liberal democracy reached a peak in 2004.

ECONOMIST: A noted critic of Islam leaves the Netherlands

So anything that disrupts sleep is very likely to worsen symptoms, leading eventually to the types of rapid changes in mood that are known as "rapid cycling" and that represent such an ominous sign for the long-term prognosis of bipolar disorder.

CNN: Can keeping a routine help control bipolar symptoms?