Select the most appropriate one-word substitution for the given group of words.
An inability of a person to sleep
Answer & explanation
Correct answer: option 3
The most appropriate one-word substitution for "an inability of a person to sleep" is insomnia.
- Imbecile is a dated term for someone who is intellectually disabled.
- Anxious is someone who is worried or nervous.
- Insomnia is the inability to fall asleep or to stay asleep.
- Hypersomnia is the excessive need for sleep.
The word insomnia comes from the Latin words "in," meaning "not," and "somnus," meaning "sleep." Insomnia is a common sleep disorder that affects millions of people worldwide. It can be caused by a variety of factors, including stress, anxiety, depression, medical conditions, and medications.