The researchers offer two hypotheses for this rise in grumpiness.

研究人员就这种暴躁情绪的产生给出了两种假设。

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Jessica Alexander of the Sleep Council said women's grumpiness may be worsened because they shoulder most of the household chores in the morning.

睡眠研究会的杰西卡·亚历山大说，由于女性早上得做很多家务活，所以她们的“下床气”更为严重。

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Jessica Alexander of the Sleep Council said womens grumpiness may be worsened because they shoulder most of the household chores in the morning.

睡眠研究会的杰西卡·亚历山大说，由于女性早上得做很多家务活，所以她们的“下床气”更为严重。

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Ms. Carr tried not to take her husband's grumpiness and distraction personally, but it was hard.

WSJ: How to Negotiate for More Space in Your Relationship

Grumpiness is even used as a mood description in screening questionnaires for low testosterone.

MSN: ��Get off my lawn!�� Why some older men get so grouchy

Older-guy grumpiness can also be traced to major life changes like retirement that come with advancing years, Wyer says.

MSN: ��Get off my lawn!�� Why some older men get so grouchy