MCQOPTIONS
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| 1. |
Which is the most significant cause of sleep maintenance insomnia? |
| A. | ubiquity of artificial light |
| B. | ignoring the human body's natural preference for segmented sleep |
| C. | a growing belief in eight-hour-sleep blocs |
| D. | waking up during the night |
| Answer» C. a growing belief in eight-hour-sleep blocs | |