25 International Symposium on Shiftwork and Working Time
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MAR CASADO
19:00 - 22:00
Shiftwork 2025

Welcome Reception

plenary 1
08:30 - 09:00
Opening Session

Opening Session

plenary 1
09:00 - 10:00
Opening Lecture

Opening Lecture: Developing sleep and circadian health solutions for shift workers: From physiology to practice

plenary 1
10:00 - 10:30
Coffee break

Coffee break

plenary 1
10:30 - 12:30
Symposium

Tailoring Health Interventions for Shift Workers: Exploring Personalized Approaches and Evidence-Based Strategies

10:30 - 10:55
The Healthy Heroes Randomized Control Trial,” focusing on the personalization of a time-restricted eating schedule for 24-Hour Shift Workers.
10:55 - 11:20
SleepSync: A Personalized Digital Intervention for Sleep and Well-Being in Australian Shift Workers
11:20 - 11:45
Personalized Light Therapy for Night Shift Work: A Precision Medicine Approach to Reducing Insomnia and Sleepiness.”
11:45 - 12:10
GRIP study: a Personalized Sleep and Nutritional intervention to Combat the Adverse Effects of Night Shift Work.
12:10 - 12:30
Questions and answers
plenary 1
12:30 - 14:00
Lunch

Lunch

plenary 1
14:00 - 16:00
Symposium

From research to practice – how research on working hours is applied

14:00 - 14:20
Implementation of the FIOH Working Time Traffic Light recommendations in the social and health care in Finland
14:20 - 14:40
Why prescription and risk management approaches to Shiftwork and fatigue regulation are inevitably doomed
14:40 - 15:00
Lessons learned from working in the US Federal government
15:00 - 15:20
Experiences with upstream implementation of research based recommendations on shift work scheduling in a Danish context
15:20 - 15:40
Experiences from Austria in jointly planning new shifts & schedules in companies
15:40 - 16:00
Questions and answers
plenary 1
16:00 - 16:30
Coffee break

Coffee break

plenary 1
16:30 - 18:30
Poster Session

Poster Session

plenary 1
19:00 - 20:30
Dinner

Dinner

plenary 1
20:30 - 22:30
Shiftwork 2025

Event for Young Researchers / WTS Board Meeting

plenary 1
09:00 - 10:00
Lecture

Assessment and management of shift work disorder

plenary 1
10:00 - 10:30
Coffee break

Coffee break

plenary 1
10:30 - 12:30
Symposium

Shift work, long working hours and health among women - new knowledge and research possibilities

10:30 - 10:55
Night shift work and sleep disturbances in women
10:55 - 11:20
Night shift work and female breast cancer risk – update of epidemiologic evidence
11:20 - 11:45
Long shifts of 12+ hours in healthcare: consequences for staff health and patient safety
11:45 - 12:10
Payroll-based data of working hours and health. A treasure trove for studies on detailed exposure to shift work and health
plenary 1
12:30 - 14:00
Lunch

Lunch

plenary 1
14:00 - 15:00
Oral Session

Oral Session: Fatigue and Sleep in Shift Work

14:00 - 14:10
Modeling Fatigue Associated with Workload in Commercial Aviation Operations
14:10 - 14:20
Unobtrusive, Camera-Based Fatigue Detection During an Overnight Simulated Flight: A Two-Phase Calibration and Validation Study.
14:20 - 14:30
Fatigue Among Employees Who Work Over the Karoshi Line (More Than 80 Hours Overtime per Month): Hybrid Approach Based on Experimental and Field Studies
14:30 - 14:40
A Proactive Intervention Supporting New Nurses’ Strategies for Sleep and Recovery When Starting Shift Work: Results From a Randomized Controlled Trial
14:40 - 14:50
Seasonal Impacts on Sleep in Arctic Shift Workers: Insights From Wearable Monitoring
14:50 - 15:00
Influences of Recovery Time and Time of Day on Sleep Duration Prior Work Shifts: Analysing Diary and Actigraphy Data From 14 Studies.
plenary 1
15:00 - 17:00
Poster Session

Poster Session 2

plenary 1
16:00 - 16:30
Coffee break

Coffee break

plenary 1
17:00 - 18:00
Shiftwork 2025

Fostering international collaborations with the WTS Scientific Community Committee .

plenary 1
18:00 - 19:00
Shiftwork 2025

Free time

plenary 1
19:00 - 20:30
Dinner

Dinner

plenary 1
20:30 - 22:00
Shiftwork 2025

Trivia

plenary 1
09:00 - 10:00
Lecture

The Impact of 50 years of research and practice on improving the lives of shiftworkers

plenary 1
10:00 - 10:30
Coffee break

Coffee break

plenary 1
10:30 - 12:30
Symposium

Shaping the Future Workweek: Global Trends and Effects of Longer vs. Shorter Work Hours

10:30 - 10:55
Long Work Hours: Does Regional and Occupational Prevalence Influence Differences in Occupational Health and Safety?
10:55 - 11:20
Insights into employees’ working time preferences and findings on health impacts.
11:20 - 11:45
Examination of workplace-level interventions and trials of reduced working time and their implications for well-being.
11:45 - 12:10
Reduced Working Hours, Job Satisfaction and Well-Being: Field Studies From Austria
12:10 - 12:30
Questions and answers
plenary 2
10:30 - 12:30
Symposium

Fatigue Management in Aviation: Scientific Principles, Regulatory Aspects and the Role of Biomathematical Models

10:30 - 10:55
Aircrew Rostering Workload Patterns and Associated Fatigue and Sleepiness Scores in Short/Medium Haul Flights in Brazil
10:55 - 11:20
Fatigue risk management in aviation and other 24/7 operations: the challenge of predicting when people choose to sleep
11:20 - 11:45
More than Math: Practical Applications within Fatigue Risk Management Systems.
11:45 - 12:10
Biomathematical models: when not to use them
12:10 - 12:30
Questions and answers
plenary 1
12:30 - 14:00
Lunch

Lunch

plenary 1
14:00 - 15:00
Oral Session

Oral Session: Health, Nutrition, and Metabolic Consequences of Shift Work

14:00 - 14:10
#NightShiftNutrition: A Content Analysis of Social Media Posts From Shiftworkers to Understand Barriers to Healthy Eating On-Shift.
14:10 - 14:20
Night Work, Sleep Deprivation and Their Association With Progression of Prediabetes Into Diabetes Mellitus: Insights From ELSA-Brasil.
14:20 - 14:30
Can an Anti-Inflammatory Diet Offset the Increased Cancer Risk Associated With Night Shift Work?
14:30 - 14:40
The Impact of Working Time Quality on the Health of Uruguayan Road Transport Drivers.
14:40 - 14:50
Effects on Blood Markers for Stress, Metabolism and Inflammation in Nurses Working Quick Returns.
14:50 - 15:00
The Predictors of Dropout for Night Shift Workers Randomised to Three Different Dietary Weight Loss Interventions: A Mixed Methods Study.
plenary 2
14:00 - 15:00
Oral Session

Oral Session: Sleep, Circadian Rhythms, and the Challenges of Work Schedules

14:00 - 14:10
Exposure to Normal Indoor Light During Night Shifts Facilitates Circadian Adaptation.
14:10 - 14:20
The Association of Shift Work Characteristics and Shift Work Planning Strategies With Turnover in Social and Healthcare: A Payroll Study Utilizing Shift Planning Unit-Level Data 2006–2021.
14:20 - 14:30
A Change in Working Hour Legislation Banning Quick Returns in Sweden – From the Perspective of Employees in Elderly Care.
14:30 - 14:40
Quick Returns, Sleep, Sleepiness and Stress – A Field Study Investigating the Intra-Individual Effects on Objective Sleep and Diary Data.
14:40 - 14:50
Sleep Deprivation With and Without Stimulant Use Exposes Distinct Dimensions of Cognition
14:50 - 15:00
Evaluation of the Impact of Shift Work on Cognitive Functions: Possible Implications for Work Capacity.
plenary 1
15:00 - 16:30
Coffee break

General Assembly

plenary 1
16:00 - 16:30
Coffee break

Coffee break

plenary 1
16:30 - 18:30
Shiftwork 2025

Free time

plenary 1
18:30 - 20:00
Shiftwork 2025

Dinner

plenary 1
20:00 - 00:00
Shiftwork 2025

Social activity and disco night

plenary 1
09:30 - 11:00
Symposium

Do Flight Time Limitations prevent fatigue in flight crew? A symposium on the findings of the FTL 2.0 study

09:30 - 09:40
Opening and explanation of the study objectives and methods used.
09:40 - 09:55
Feeling jet-lagged? Effects of flying in an unknown state of acclimatization on crew fatigue
09:55 - 10:10
Sleepiness and fatigue during long flight duties “at the most favourable time of the day”
10:10 - 10:20
Conditions, circumstances, and reasons for flight crew members to use Controlled Rest
10:20 - 10:30
Other than airport standbys: timing, circumstances and maximum hypothetical flight duty periods
10:30 - 10:45
Conclusions and recommendations for regulators, airlines, and flight crew.
10:45 - 11:00
questions and answers
plenary 2
09:30 - 11:30
Symposium

Mechanistic studies in shift workers: understanding the biological mechanisms and designing interventions to mitigate the risks

09:30 - 09:55
Night shift work and biomarkers of disease risk in observational mechanistic studies.
09:55 - 10:20
Diurnal rhythms of melatonin and cortisol among permanent night workers.
10:20 - 10:45
Short and long-term effects of a dynamic light intervention in shift workers
10:45 - 11:10
Determinants of Sleep in Shift Workers and Strategies to Promote Recovery
11:10 - 11:30
Questions and answers
plenary 1
11:30 - 12:00
Coffee break

Coffee Break

plenary 1
12:00 - 12:30
Shiftwork 2025

Closing Session