0000000000227340

AUTHOR

Stefan Bührer

0000-0002-0649-8204

showing 2 related works from this author

Air Quality and Chronic Stress: A Representative Study of Air Pollution (PM2.5, PM10) in Germany.

2019

Objective With rising attention on climate change and the aftermath of burning fossil fuels, there is much concern regarding the effects of air pollution on physical and psychological health. However, the relationship between chronic stress and air pollution is relatively unexplored in humans. Methods By combining German representative data with national pollution data and using step-wise regression analyses, this study investigates how air pollution (particulate matter 2.5 and 10 [PM2.5 and PM10]) impacts ones' chronic stress levels (TICS). Results Results show PM2.5 fine-dust particles significantly affect chronic stress, while PM10 has no such effect. Air pollution (PM2.5), age, and inco…

PollutionAdultMaleAdolescentmedia_common.quotation_subjectAir pollutionClimate changemedicine.disease_causecomplex mixturesPsychological health03 medical and health sciencesYoung Adult0302 clinical medicineEnvironmental healthAir PollutionGermanymedicineHumansChronic stressParticle SizeAir quality indexmedia_commonAgedPollutantAged 80 and overPublic Health Environmental and Occupational HealthEnvironmental ExposureParticulatesMiddle Aged030210 environmental & occupational healthChronic DiseaseEnvironmental scienceRegression AnalysisFemaleParticulate MatterStress PsychologicalJournal of occupational and environmental medicine
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Increase in cortisol concentration due to standardized bright and blue light exposure on saliva cortisol in the morning following sleep laboratory

2020

Research studies on LED light exposure and cortisol are inconsistent and not comparable due to different types of light, exposure times, and sample sizes. Therefore, one hour of standardized exposure LED light at different intensities and the spectral composition during the post-awakening phase at 7:30 were compared. A sample of 23 (Study 1) and 26 (Study 2) healthy males were randomly assigned to: 1) bright white light (414 lux) and 2) dim darkened light (2 lux) as well as 3) red light (235 lux) and 4) blue light (201 lux) exposure conditions. Results from repeated measures ANOVA confirm that light exposure affects the cortisol concentration. Study 1 revealed an increase in the saliva cort…

MaleHypothalamo-Hypophyseal SystemSalivaHydrocortisonePhysiologyPituitary-Adrenal SystemPhysiology03 medical and health sciencesBehavioral Neuroscience0302 clinical medicineHumansMedicineCircadian rhythmSalivaMelatoninLight exposureBlue lightMorningEndocrine and Autonomic Systemsbusiness.industrySleep laboratorySleep in non-human animalsCircadian Rhythm030227 psychiatryPsychiatry and Mental healthNeuropsychology and Physiological PsychologyResearch studiesLaboratoriesSleepbusinessStress Psychological030217 neurology & neurosurgeryStress
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