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

Have you noticed your hands trembling or your heart pounding this morning? It might be related to the cup of coffee you had yesterday. The body is honest, and the heart is often the first to signal even minor shifts. Do not worry; I will explain it all to you clearly, just like a caring older sister.

Have you ever experienced a throbbing headache and a completely limp body because of the very cup of fragrant morning coffee you habitually drank to wake yourself up? When you suddenly stop drinking coffee, the terrible headache and fatigue that strike might even make you shudder and think, 'Was I suffering from caffeine addiction?' I know that pain all too well.