According to the information discussed in the In Focus box titled "What You Really Want to Know About Sleep," which of the following statements is TRUE?
A) A naturally occurring compound called adenosine seems to be involved in producing sleepiness.
B) Sleep paralysis is a rare, progressive condition that can eventually lead to a permanent coma if left untreated.
C) Sleep researchers have demonstrated that it is possible to have extended, meaningful conversations with chronic sleeptalkers.
D) Yawning is caused by having too little oxygen or too much carbon dioxide in the blood.

Question

Quizplus · Accepted Answer

The information discussed in the In Focus box confirms that adenosine is involved in producing sleepiness, making statement A true. Statement B is false, as sleep paralysis is not progressive and does not lead to a permanent coma. Statement C is not mentioned in the box and therefore cannot be confirmed or denied. Statement D is false, as yawning is actually caused by a complex interplay between various physiological factors, including temperature and time-of-day, rather than a simple imbalance of oxygen and carbon dioxide levels in the blood.

According to the Information Discussed in the in Focus Box