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Otherwise, why would there be sweat on Yang Xiao's forehead?
One might think Yang Xiao's movements are as simple as they appear. If that were the case, wouldn't anyone be able to step up and do it?
To Yang Xiao, acupuncture was manageable. Though taxing, he could easily bear it.
Trembling needle technique, however, was a different story.
Every time he made those silver needles vibrate, Yang Xiao had to mobilize all his strength throughout his body, controlling it to an exquisitely precise degree.
Using the trembling of the needles to stimulate the body's own vital energy and blood required a complexity beyond simple comprehension.
Therefore, the trembling needle technique didn't just consume physical strength but also drained one's essence, Qi, and spirit.
This combined expenditure was simply unbearable for the average person.
It was only because Yang Xiao was exceptional that he could perform the trembling needle technique and even do it successively.
