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

You clearly had two cups of coffee this morning, but does your head still feel heavy? You have a mountain of work to do, but you keep zoning out, and even during an important conversation, you find yourself drifting off into another world. Could it be that accumulated brain fatigue has caused your concentration to drop?

Lately, do you often find yourself forgetting things, missing important tasks, and feeling spaced out? If you are worrying whether forgetfulness has begun or your brain function is not what it used to be, let me share an essential truth with you. It might not be just your brain, but a deficiency of essence.