http://www.ccohs.ca/oshanswers/work_schedules/workday.html

Provides answers to common questions regarding health and safety issues of extended workday. Topics include: What is meant by the extended work day?; What are some advantages and disadvantages of extended workdays?; What should I know about fatigue?; What are the issues surrounding social life? ; What are the issues surrounding safety?; What are the issues surrounding exposure to physical and chemical hazards? ; What types of jobs are suitable for an extended workday?; and What are some guidelines for using an extended workday?.