Sakari Lemola

TL;DR: In this article, the authors compared the mental toughness of adolescents and young adults with self-reported exercise, physical activity and recommended levels of physical activity, and found that participants who fulfilled current physical activity recommendations also reported elevated mental toughness scores compared to those who did not.

TL;DR: In this paper, the authors investigated whether the amount and circadian time of habitual computer game playing were related to depressive symptoms in adolescents and young adults and found that playing at night may involve short, irregular, and disturbed sleep as well as misalignment of the circadian rhythm.

TL;DR: The direct influence of emotional partner support is stronger regarding symptoms of depression and hyperarousal than regarding avoidance and intrusive thoughts, and no direct association between intranatal physical discomfort/labour pain and later maternal adjustment could be found.

TL;DR: Poor sleep in children may have prenatal origins, and possible mechanisms include alcohol consumption during pregnancy and other conditions associated with small body size at birth.

TL;DR: In this article, the authors tested the relationship of objectively measured sleep quantity and quality with positive characteristics of the child, such as optimism, self-esteem and social competence, by measuring sleep duration, sleep latency and sleep efficiency.