Daniel Kashi
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View article: Habitual fluid intake and hydration status influence cortisol reactivity to acute psychosocial stress
Habitual fluid intake and hydration status influence cortisol reactivity to acute psychosocial stress Open
Cortisol reactivity to acute stress predicts long-term health. Our novel findings show greater cortisol reactivity to acute stress in adults with habitual low fluid intake. Suboptimal hydration (e.g., darker morning urine) was associated w…
View article: Is the Mannheim Multicomponent Stress Test a viable alternative to the Trier Social Stress Test?
Is the Mannheim Multicomponent Stress Test a viable alternative to the Trier Social Stress Test? Open
View article: Good perceived sleep quality protects against the raised risk of respiratory infection during sleep restriction in young adults
Good perceived sleep quality protects against the raised risk of respiratory infection during sleep restriction in young adults Open
Study Objectives Prospectively examine the association between sleep restriction, perceived sleep quality (PSQ) and upper respiratory tract infection (URTI). Methods In 1318 military recruits (68% males) self-reported sleep was assessed at…
View article: Influence of Vitamin D Supplementation by Simulated Sunlight or Oral D3 on Respiratory Infection during Military Training
Influence of Vitamin D Supplementation by Simulated Sunlight or Oral D3 on Respiratory Infection during Military Training Open
Purpose This study aimed to determine the relationship between vitamin D status and upper respiratory tract infection (URTI) of physically active men and women across seasons (study 1) and then to investigate the effects on URTI and mucosa…
View article: Vitamin D and the hepatitis B vaccine response: a prospective cohort study and a randomized, placebo-controlled oral vitamin D3 and simulated sunlight supplementation trial in healthy adults
Vitamin D and the hepatitis B vaccine response: a prospective cohort study and a randomized, placebo-controlled oral vitamin D3 and simulated sunlight supplementation trial in healthy adults Open
Purpose To determine serum 25(OH)D and 1,25(OH) 2 D relationship with hepatitis B vaccination (study 1). Then, to investigate the effects on hepatitis B vaccination of achieving vitamin D sufficiency (serum 25(OH)D ≥ 50 nmol/L) by a unique…
View article: The Efficacy of Administering Fruit-Derived Polyphenols to Improve Health Biomarkers, Exercise Performance and Related Physiological Responses
The Efficacy of Administering Fruit-Derived Polyphenols to Improve Health Biomarkers, Exercise Performance and Related Physiological Responses Open
Polyphenols are secondary metabolites involved in a myriad of critical processes in plants. Over recent decades, special attention has been paid to the anti-oxidative role of fruit-derived polyphenols in the human diet, with evidence suppo…
View article: Influence of Vitamin D Supplementation by Sunlight or Oral D3 on Exercise Performance
Influence of Vitamin D Supplementation by Sunlight or Oral D3 on Exercise Performance Open
Purpose To determine the relationship between vitamin D status and exercise performance in a large, prospective cohort study of young men and women across seasons (study 1). Then, in a randomized, placebo-controlled trial, to investigate t…