Everything is cool when you're part of a team? The effects of outcome interdependence on appraisal, emotions, and performance under pressure.

Pressure is an innate feature of competition and stimulates cognitions and emotions that can both reduce and enhance performance. Similarly, teams are ubiquitous in sport and influence their members in various ways. Yet, we know little about the ways in which teams influence their members' responses to pressure, whether they are an added demand, inducing social indispensability and exacerbating the effects of pressure, or a resource, providing shared responsibility and buffering pressure effects.

Effect of COVID-19 Pandemic Lockdowns on Body Mass Index of Primary School Children from Different Socioeconomic Backgrounds.

Background: Childhood obesity is associated with various health outcomes. Restrictive measures to contain the spread of the Coronavirus Disease 2019 (COVID-19) pandemic, like lockdowns and school closures, affected children's daily structure, physical activity, dietary habits, and sleep quality, possibly exacerbating risk factors for childhood obesity and higher body mass index (BMI) in children. Poor socioeconomic conditions may have led to relatively higher risk for elevated BMI levels following pandemic measures.

Psychological well-being in Europe after the outbreak of war in Ukraine.

The Russian invasion of Ukraine on February 24, 2022, has had devastating effects on the Ukrainian population and the global economy, environment, and political order. However, little is known about the psychological states surrounding the outbreak of war, particularly the mental well-being of individuals outside Ukraine. Here, we present a longitudinal experience-sampling study of a convenience sample from 17 European countries (total participants = 1,341, total assessments = 44,894, countries with >100 participants = 5) that allows us to track well-being levels across countries during the weeks surrounding the outbreak of war.

Narcissists' affective well-being: Associations of grandiose narcissism with state affect level and variability.

Whereas grandiose narcissism has generally been found to be related to adaptive affective experiences (i.e., positive affective states), many theoretical conceptualizations have emphasized its associations with characteristics of low affective well-being (i.