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

Have you ever felt your heart sink one morning seeing a pile of hair on your pillow? With dry, thinning hair making styling difficult, you might have worried whether it could be a serious illness. Behind this symptom that is so easy to blame simply on age or stress, an SOS signal from our body's vital 'little butterfly'—the thyroid gland—might be hiding.

Do you sigh every time you look in the mirror? Have you noticed your hair becoming markedly thin and snapping off limply lately? Many people feel especially distressed when their hair becomes rough and lackluster after going on an extreme diet.