Trevrizent said:
For information on how to handle rotating, night, or evening shifts, there is a chapter on this in 'The Circadian Prescription' by Sidney Baker and Karen Baar.
This book compliments 'Lights Out'.
Well, I bought the book (thanks Trevrizent!) and here is the chapter:
[quote author=The Circadian Prescription - Appendix B: Shift Work]
How to Handle Rotating, Night, or Evening Shifts
Human chemistry is geared to sleep, restoration, and and repair at night and the full exploitation of consciousness during the day. Doing things the other way round is not natural, but millions of us do so at some cost to our health and safety. Some individuals are more adaptable than others, who could never function effectively if their work required them to oppose the normal day-night schedule by working at night. Those who have the most challenge to their physiology and health are those who dont work regular day or night jobs but instead have to adapt to periodic changes in the rotation.
Employers in all sections of the military and civilian economy have used circadian research to learn how they can help workers achieve improved health and reduce the risk of the enormous losses that arise from accidents due to human error. As Dr. Martin Moore-Ede points out in his book
The Twenty Four Hour Society [1], the three Mile Island and Chernobyl nuclear disasters, the Exxon Valdez accident, Bhopal, numerous plane crashes, and countless other catastrophies have all happened at times of day (night, actually) when human functioning is low. Shift work's negative effect on the way we function played a significant role in causing many of those calamities.
Incorporating scientific research and principles into planning shift work rotations is beneficial to health, morale, productivity, and the bottom line. Unfortunately, many employers stick with traditional methods of shift work planning.
Here are some guidelines that may help you negotiate healthier rotations with your employer or at least to adapt when your shift rotations are not under your control:
1. Slow rotation, allowing your body to adapt to each shift as you come to it, is preferable to fast rotation. An example of fast rotation is working day shift on Monday, night shift on Tuesday, evening shift on Wednesday, and night shift on Thursday. In other words, you're working different shifts in the same week, expecting your body to stay on "regular time" while you work at the "wrong time of day."
2. Delayed rotation, in which you move in the direction of morning shift to afternoon shift to night shift (remember: it's MAN) is much better than advanced rotation, in which you move from morning shift to night shift to afternoon shift.
3. If you must rotate, you should stay at least a week or more on each shift.
4. When you are on a shift, you should live the shift. Move your whole schedule so that it conforms to the practices outlined in the following table. It will take a few days to adjust, but it is better to do that than spend the whole rotation with your body in rhythmic turmoil.
5. Be sure you have two days off between shift changes. Use the table to guide you in preparing for the new shift.
If the shift change is a phase delay (going from morning shift to afternoon, afternoon to night, or night to morning), you can do even better by following some simple rules for preparing. here are the rules, which depend on two days off between shift changes:
*The times in the Early phase column are the beginning of the work shift.
*The activities in the Early phase column are what you should do when getting up at the appropriate time before work to have "breakfast" and so on.
*The times shown in the Mid phase column should be considered "noon" on each shift while you are at work. For example, on the night shift you would have a big, high protein "lunch" at 4:00 am.
*The Rest phase refers to the time after you get out of work.
*The Presleep phase refers to the time and the meal that precedes sleep. If you are on the afternoon shift, for example, this phase would start around 4:00 or 5:00 am and last for eight hours, ending between noon and 1:00 pm in time for "breakfast" and getting to work.
*This scheme is the same if you stay on the same shift for more than a wek or if you're on a permanent shift.
A phase advance (going from morning to night, night to afternoon, or afternoon to evening) is the less preferred shift rotation but it is still practiced in many industries that took their lead from the watch rotation of the navy. It is backwards according to scientific evidence but deeply rooted in tradition. The preparation is trickier because this is a much more difficult change for your body to handle. The main difficulty has to do with the caffeine intake - several cups of black coffee - recommended in the Presleep phase of your first day off, which may give you a bad night's sleep before your second day off. The tradeoff is that your body's clock will be reset more quickly in order to face the beginning of your new shift.
[1. Moore-Ede, M.
The Twenty Four Hour Society. Reading, MA: Addison-Wesley, 1993.]
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