Adolescents’ Electronic Media Use at Night, Sleep Disturbance, and Depressive Symptoms in the Smartphone Age

Sakari Lemola, Nadine Perkinson‐Gloor, Serge Brand, +2

Journal of Youth and Adolescence

Social MediaSocial IssuesPsychiatryCollaborative NetworksSleep Disturbance +12

Variability of Sleep Duration Is Related to Subjective Sleep Quality and Subjective Well-Being: An Actigraphy Study

Sakari Lemola, Thomas Ledermann, Elliot Friedman

PLoS ONE

Validation of the German version of the insomnia severity index in adolescents, young adults and adult workers: results from three cross-sectional studies

Markus Gerber, Christin Lang, Sakari Lemola, +5

BMC Psychiatry

Are Adolescents With High Mental Toughness Levels More Resilient Against Stress?

Markus Gerber, Nadeem Kalak, Sakari Lemola, +6

Stress and Health

Adolescents' exercise and physical activity are associated with mental toughness

Markus Gerber, Nadeem Kalak, Sakari Lemola, +5

Mental health and physical activity

Teen Mental HealthPhysical ActivityExerciseExercise PhysiologyChildhood Physical Activity +9

Long-term effects of pregnancy and childbirth on sleep satisfaction and duration of first-time and experienced mothers and fathers

David Richter, Michael Dominik Krämer, Nicole K. Y. Tang, +2

SLEEP

Sleep duration, positive attitude toward life, and academic achievement: The role of daytime tiredness, behavioral persistence, and school start times

Nadine Perkinson‐Gloor, Sakari Lemola, Alexander Grob

Journal of Adolescence

Habitual computer game playing at night is related to depressive symptoms

Sakari Lemola, Serge Brand, Nicole Vogler, +3

Personality and Individual Differences

SleepOnline GamingPsychiatryMood SymptomAffective Neuroscience +10

Optimism and Self-Esteem Are Related to Sleep. Results from a Large Community-Based Sample

Sakari Lemola, Katri Räikkönen, Veronica Gomez, +1

International Journal of Behavioral Medicine

Sleep DisordersSocial PsychologyHealth PsychologySocial SciencesPsychology +15

Adolescents With Greater Mental Toughness Show Higher Sleep Efficiency, More Deep Sleep and Fewer Awakenings After Sleep Onset

Serge Brand, Markus Gerber, Nadeem Kalak, +5

Journal of Adolescent Health

Sleep DisordersSleep HealthMore Deep SleepMental HealthAdolescence +14