I will only talk about the clinical use of lingzhi from my personal experience.

Ø      Cure hand tremor I myself had hand tremor for many years. It is my familial trait.  One of my brothers has it.  Out of my five children two have it.  The symptom does not appear all the time, only when excited or after drinking coffee, beer or whisky.  It however could be quite embarrassing at dining table to spill soup with a shaking hand.  Then one day I was surprised to notice that my hand tremor was gone. Lingzhi has cured it.

Ø  Biting trauma to mouth When chewing, I frequently bite my tongue, lips or inner surface of cheek. Chewing involves several muscles and good coordination is necessary. Somehow my chewing muscles didnt cooperate well.  Mistakes in action inflicted trauma to my mouth. This symptom went away with lingzhi.