Opening the Donguibogam library...
Opening the Donguibogam library...
Opening the symptom encyclopedia...

Have you ever experienced drifting off to sleep while walking, talking, or even during an important meeting? This sudden drowsiness, which goes beyond mere fatigue and disrupts your quality of life, may not be a problem with your nighttime sleep.

Why is it so hard to open your eyes in the morning? Could it just be you? You thought you slept soundly last night, yet all day long your head feels foggy and your body feels as heavy as lead. Drinking multiple cups of coffee does not help, and as soon as afternoon arrives, sleepiness overtakes you without you even realizing it. Never take this symptom lightly. It might be hypersomnia stealing your energy.