Differential Effects of One Meal per Day in the Evening on Metabolic Health and Physical Performance in Lean Individuals

Are my wife's recovery activities related to my subsequent recovery activities at work?

We proposed a model where a male employee's wife's engagement in recovery activities results in the husband's own enactment of recovery activities while in the workplace, via emotional contagion, based on the COR theory and broaden-and-build theory of positive emotions. We expected wives may experience positive emotions after engaging in social interactions, which has a contagion effect on husbands' positive emotions. Further, husbands were expected to leverage their positive emotions to engage in future recovery activities (better lunch nap and meal quality while at work). Lastly, we examined whether power imbalance in the married couple has a moderating effect on emotional contagion processes. To test our model, we used an experience-sampling method in which 110 dyads completed daily diary questionnaires for 8 consecutive days (N = 768, after removing 112 invalid observations). As expected, wives' social interactions are linked to husbands' positive emotions via wives' positive emotions. Further, husbands' positive emotions predict the quality of two workplace recovery activities (lunch naps and meals). Finally, power imbalance moderates the association between wives' (donors) emotions and husbands' (recipients) emotions such that the crossover of emotions is stronger when wives (donors) have relatively more power than when they have less.

Complex physiology and clinical implications of time-restricted eating

Time-restricted eating (TRE) is a dietary intervention that limits food consumption to a specific time window each day. The effect of TRE on body weight and physiological functions has been extensively studied in rodent models, which have shown considerable therapeutic effects of TRE and important interactions among time of eating, circadian biology, and metabolic homeostasis. In contrast, it is difficult to make firm conclusions regarding the effect of TRE in people because of the heterogeneity in results, TRE regimens, and study populations. In this review, we 1) provide a background of the history of meal consumption in people and the normal physiology of eating and fasting; 2) discuss the interaction between circadian molecular metabolism and TRE; 3) integrate the results of preclinical and clinical studies that evaluated the effects of TRE on body weight and physiological functions; 4) summarize other time-related dietary interventions that have been studied in people; and 4) identify current gaps in knowledge and provide a framework for future research directions.