The risk of an accident grows with each successive night shift, so that a worker is twice as likely to have an accident on the fourth night shift in a row as on the first.

ECONOMIST: No more nine-to-five

On that day, before her waitressing shift, she and a co-worker went to visit a pagoda in Siem Reap.

FORBES: Lida Ley Passed Up An Opportunity With Angelina Jolie To Survive

You name it, I applied for it, including positions as a pet store receptionist, Kentucky Fried Chicken shift worker, pizza delivery boy and cleaner.

FORBES: Coming To Terms With Underemployment

That day, as always, I walked into the clinic after school to begin my shift, only to have a co-worker tell me I was to go immediately to talk with the office manager.

FORBES: What I Learned from Leaving the Safe Unlocked

The young, male shift worker who drives at night Austin Lewis, 25, works back shifts for a Southern California newspaper.

CNN: How to combat drowsy driving