적절한 수면 환경에서도 잠을 이루지 못하거나 잠든 상태를 유지하기 어려운 만성적인 상태
A persistent condition characterized by difficulty falling asleep or staying asleep, often leading to daytime fatigue and impairment.
예문:
"She tried various relaxation techniques to combat her chronic insomnia."
"Insomnia is often a symptom of underlying anxiety or depression."
"The patient reported that his insomnia had worsened since he started working night shifts."