Correct option is C
Sol. Insomnia refers to difficulty falling asleep, staying asleep, or waking up too early, despite adequate opportunity for rest. It leads to fatigue, irritability, and decreased daytime functioning. Causes include stress, anxiety, depression, poor sleep hygiene, and medical conditions.
Explanation of each option:
· (a) Amnesia – Refers to memory loss, either partial or complete. It is unrelated to sleep and commonly seen in head injuries or neurological conditions.
· (b) Narcolepsy – A chronic sleep disorder causing sudden, uncontrollable sleep attacks, often during daytime activities. Different from insomnia.
· (c) Insomnia – Correct Answer. A common sleep disorder where a person has trouble initiating or maintaining sleep, often linked to mental or physical health issues.
· (d) Hypersomnia – Refers to excessive daytime sleepiness, even after adequate nighttime sleep. Opposite of insomnia.