PrepTest 46, Section 2, Question 12
Researcher: We studied two groups of subjects over a period of six months. Over this period, one of the groups had a daily routine of afternoon exercise. The other group, the control group, engaged in little or no exercise during the study. It was found that those in the exercise group got 33 percent more deep-sleep at night than did the control group. Exercising in the afternoon tends to raise body temperature slightly until after bedtime, and this extra heat induces deeper sleep.
Researcher: We studied two groups of subjects over a period of six months. Over this period, one of the groups had a daily routine of afternoon exercise. The other group, the control group, engaged in little or no exercise during the study. It was found that those in the exercise group got 33 percent more deep-sleep at night than did the control group. Exercising in the afternoon tends to raise body temperature slightly until after bedtime, and this extra heat induces deeper sleep.
Researcher: We studied two groups of subjects over a period of six months. Over this period, one of the groups had a daily routine of afternoon exercise. The other group, the control group, engaged in little or no exercise during the study. It was found that those in the exercise group got 33 percent more deep-sleep at night than did the control group. Exercising in the afternoon tends to raise body temperature slightly until after bedtime, and this extra heat induces deeper sleep.
Researcher: We studied two groups of subjects over a period of six months. Over this period, one of the groups had a daily routine of afternoon exercise. The other group, the control group, engaged in little or no exercise during the study. It was found that those in the exercise group got 33 percent more deep-sleep at night than did the control group. Exercising in the afternoon tends to raise body temperature slightly until after bedtime, and this extra heat induces deeper sleep.
The researcher's statements, if true, most strongly support which one of the following?
Regular afternoon exercise is one of the things required for adequate deep-sleep.
Exercise in the morning is almost as likely to have as many beneficial effects on sleep as is exercise in the afternoon.
The best way to get increased deep-sleep is to induce a slight increase in body temperature just before bedtime.
No one in the control group experienced a rise in body temperature just before bedtime.
Raising body temperature slightly by taking a warm bath just before bedtime will likely result in increased deep-sleep.
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