The only real solution appears to be to hand over the night shift to a corps of permanent night workers whose nocturnal wakefulness may persist through all weekend and holidays. An interesting study of the domestic life and health of night-shift workers was carried out by Brown. She found a high incidence of disturbed sleep, digestive disorder and domestic disruption among those on alternating day and night shifts, but no abnormal occurrence of these symptoms among those on permanent night work.
1. The question raised in Paragraph 1 is no mere academic one
A)because Bonjers findings are different from Browns.
B)because sleep normally coincides with the hours of darkness.
C)because some people can change their sleeping habits easily.
D)because shift work in industry requires people to change the sleeping habits.
2. According to the passage, the main problem about night work is that
A) people hate the inconvenience of working on night shifts.
B) your life is disturbed by changing from day to night routines and back.
C) not all industries work at the same hours.
D) it is difficult to find a corps of good night workers.
3. According to the passage, the best solution on the problem seems to be
A) not to change shifts from one week to the next.
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