The CEP paper, to be published this week, is the first to examine how our expectations compare to reality at different life stages. Researcher Hannes Schwandt, 30, analysed happiness levels for 23,161 Germans aged 17 to 85.

经济表现研究中心的论文将于本周发表，这是第一份以人类现实年龄和理想生活预期作对比的研究报告。为此，30岁的研究者汉内斯·施瓦德调查了23161名17至85岁的德国人的幸福程度。

Dr Schwandt, who is based at Princeton University in the US but is a visiting researcher at the London centre, said: ‘One theory is that the U-shape is driven by unmet aspirations which are painfully felt in midlife but beneficially abandoned later in life.

施瓦德博士本在美国普林斯顿大学工作，现在在伦敦客座研究员。他说：“有一种理论称，无法满足的欲望催生了U形曲线，这种痛苦在中年时期尤为强烈，但随着人慢慢变老，放弃一些追求，便又重新快乐起来了。”

‘People in their fifties could learn from the elderly, who generally feel less regret. They should try not to be frustrated by their unmet expectations because they are probably not feeling much worse than their peers.’

“五十多岁的人应该向比他们更老的人学习，大部分老人都不会后悔太多事情。不要因为没有达到预期而沮丧不安，因为他们的同龄人大概也处于相同状态。”

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