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List of works by Nadeem Kalak

"Sleep well, our tough heroes!"--in adolescence, greater mental toughness is related to better sleep schedules

scientific article

"Tell me, how bright your hypomania is, and I tell you, if you are happily in love!"--among young adults in love, bright side hypomania is related to reduced depression and anxiety, and better sleep quality

scientific article

Acute Bouts of Exercising Improved Mood, Rumination and Social Interaction in Inpatients With Mental Disorders.

scientific article published on 13 March 2018

Adolescents with greater mental toughness show higher sleep efficiency, more deep sleep and fewer awakenings after sleep onset

scientific article

Adolescents' exercise and physical activity are associated with mental toughness

article by Markus Gerber et al published June 2012 in Mental Health and Physical Activity

Agitation predicts response of depression to botulinum toxin treatment in a randomized controlled trial

scientific article published on 31 March 2014

Are adolescents with high mental toughness levels more resilient against stress?

scientific article published on 3 September 2012

Association between subjective actual sleep duration, subjective sleep need, age, body mass index, and gender in a large sample of young adults

scientific article

Both hair cortisol levels and perceived stress predict increased symptoms of depression: an exploratory study in young adults

scientific article published on 19 July 2013

Compared to controls, patients with ruptured aneurysm and surgical intervention show increase in symptoms of depression and lower cognitive performance, but their objective sleep is not affected

scientific article published on 24 February 2014

Concerns regarding hair cortisol as a biomarker of chronic stress in exercise and sport science

scientific article published on December 2012

Cortisol Impacted on Explicit Learning Encoding, but Not on Storage and Retrieval, and Was Not Associated With Sleep Patterns-Results From the Trier Social Stress Test for Children (TSST-C) Among 9-Years Old Children

scholarly article by Serge Brand et al published 2018 in Frontiers in Psychology

Cortisol levels and sleep patterns in infants with orofacial clefts undergoing surgery

scientific article

Daily morning running for 3 weeks improved sleep and psychological functioning in healthy adolescents compared with controls

scientific article

Dream recall and its relationship to sleep, perceived stress, and creativity among adolescents

scientific article published on 28 May 2011

During early and mid-adolescence, greater mental toughness is related to increased sleep quality and quality of life

scientific article

During early to mid adolescence, moderate to vigorous physical activity is associated with restoring sleep, psychological functioning, mental toughness and male gender

scientific article published on April 2016

Examining Dark Triad traits in relation to mental toughness and physical activity in young adults

scientific article published on 27 January 2016

Examining Dark Triad traits in relation to sleep disturbances, anxiety sensitivity and intolerance of uncertainty in young adults.

scientific article

Facing depression with botulinum toxin: a randomized controlled trial

scientific article published on 24 February 2012

High self-perceived exercise exertion before bedtime is associated with greater objectively assessed sleep efficiency

scientific article published on 16 June 2014

Impaired objective and subjective sleep in children and adolescents with inflammatory bowel disease compared to healthy controls

scientific article published on 21 September 2017

Mental toughness, sleep disturbances, and physical activity in patients with multiple sclerosis compared to healthy adolescents and young adults

scientific article published on 27 June 2016

Objectively assessed physical activity is associated with increased hair cortisol content in young adults

scientific article published on 6 August 2013

Perceived parenting styles differ between genders but not between elite athletes and controls

scientific article published on 28 January 2011

Perfectionism related to self-reported insomnia severity, but not when controlled for stress and emotion regulation

scientific article published on 3 February 2015

Poor Sleep Is Related to Lower Emotional Competence Among Adolescents

scientific article

Sleep duration and subjective psychological well-being in adolescence: a longitudinal study in Switzerland and Norway

scientific article

The current state of physical activity and exercise programs in German-speaking, Swiss psychiatric hospitals: results from a brief online survey

scientific article published on 03 June 2016

The effectiveness of cognitive behavioral therapy with respect to psychological symptoms and recovering autobiographical memory in patients suffering from post-traumatic stress disorder

scientific article

The relation of objective sleep patterns, depressive symptoms, and sleep disturbances in adolescent children and their parents: a sleep-EEG study with 47 families

scientific article published on 27 July 2012

The relationship between physical activity and sleep from mid adolescence to early adulthood. A systematic review of methodological approaches and meta-analysis

scientific article published on 05 August 2015

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

scientific article published on 31 May 2016