insomnia (disorder)

Insomnia is a sleep disorder characterized by difficulty falling asleep, staying asleep, or getting restful sleep despite having the opportunity to rest. It can lead to feeling tired, less alert, and irritable during the day. Insomnia may be caused by stress, anxiety, medical conditions, medications, poor sleep habits, or environmental factors. It can be short-term (acute) or ongoing (chronic). Proper diagnosis often involves assessing sleep patterns and underlying causes. Managing insomnia may include lifestyle changes, behavioral therapies, and sometimes medication, aiming to improve sleep quality and overall well-being.