Subjective age discordance (SAD) captures the difference between how old one feels and how old one would ideally like to be. We investigated the presence, strength, and fluctuation of this discordance in daily life as well as its relationship to various indicators of physical and psychological well-being with an 8-day diary study. Participants were 116 older and 107 younger adults who completed daily measures of felt age, ideal age, positive and negative affect, physical symptoms, and stressors. We operationalized SAD as felt age minus ideal age divided by chronological age and compared the utility of this discordance to the more established proportional discrepancy of felt age from chronological age. Daily SAD was present in both age groups, such that individuals idealized younger ages than they felt. This discordance was larger in older than younger adults, although younger adults exhibited more daily fluctuations in SAD. Within-person increases in SAD were associated with lower positive affect, whereas larger SAD at the between-person level was associated with more physical symptoms and stressors. These relationships were over and above the associations of felt and chronological age with the outcomes suggesting the utility of daily SAD for understanding daily physical and psychological well-being. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

中文翻译：

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主观年龄不一致和幸福感的日常体验。

主观年龄不一致 (SAD) 反映了一个人的年龄与理想情况下的年龄之间的差异。我们通过为期 8 天的日记研究调查了这种不和谐在日常生活中的存在、强度和波动，以及它与各种身心健康指标的关系。参与者是 116 名老年人和 107 名年轻人，他们完成了对感觉年龄、理想年龄、正面和负面影响、身体症状和压力源的日常测量。我们将 SAD 操作为感觉年龄减去理想年龄除以实足年龄，并将这种不一致的效用与更确定的感觉年龄与实足年龄的比例差异进行比较。两个年龄组都存在每日 SAD，因此个人理想化的年龄比他们认为的要年轻。这种不一致在老年人中比年轻人更大，尽管年轻人在 SAD 中表现出更多的日常波动。人内 SAD 的增加与较低的积极影响相关，而人与人之间较大的 SAD 与更多的身体症状和压力源相关。这些关系超出了感觉年龄和实际年龄与结果的关联，这些结果表明每日 SAD 对了解日常身心健康的效用。（PsycInfo 数据库记录 (c) 2021 APA，保留所有权利）。这些关系超出了感觉年龄和实际年龄与结果的关联，这些结果表明每日 SAD 对了解日常身心健康的效用。（PsycInfo 数据库记录 (c) 2021 APA，保留所有权利）。这些关系超出了感觉年龄和实际年龄与结果的关联，这些结果表明每日 SAD 对了解日常身心健康的效用。（PsycInfo 数据库记录 (c) 2021 APA，保留所有权利）。