27. What is the definition of the term insomnia as mentioned in the third paragraph?

Answer: A

Explanation:

Difficulty sleeping.

Insomnia is defined as the difficulty in sleeping, which aligns with the correct answer choice A. This condition is characterized by problems with falling asleep, staying asleep, or waking up too early and not being able to go back to sleep.

A) Difficulty sleeping.

This option accurately defines insomnia. The context provided indicates that insomnia is one of the ailments linked to coffee consumption in the early 1900s, supporting that insomnia indeed refers to difficulties with sleep.

B) Double vision.

Double vision, or diplopia, is a visual impairment where a person sees two images of a single object. This option does not relate to the definition of insomnia, which concerns sleep issues rather than vision problems.

C) Dizziness.

Dizziness refers to a state of unsteadiness or a feeling of faintness. While dizziness can sometimes be associated with sleep problems, it is not synonymous with insomnia and therefore does not correctly define the term in question.

D) Drowsiness.

Drowsiness indicates a state of feeling sleepy or lethargic, which is not the same as insomnia. Insomnia specifically refers to difficulty sleeping, making this option incorrect in the context of the definition being sought.

Conclusion

The correct answer, "Difficulty sleeping," precisely captures the essence of insomnia, distinguishing it from the other options that describe unrelated conditions. All other choices fail to represent the specific definition of insomnia, reinforcing that choice A is definitively the correct response.