"I don't know if you've recently been having constipation, loss of appetite, and restless nights," Yin Xiaofan said, noting the security guard's sallow complexion and lackluster spirit, smiling as he spoke.
"How did you know?" The guard was taken aback that Yin Xiaofan could identify his condition with just one look and spoke in surprise.
"Didn't I tell you, I'm a doctor, you're ill, and naturally, I can see it," Yin Xiaofan said with a smile.
"Oh, then tell me, what is this illness and how should it be treated?" the guard asked, his tone a mix of disbelief and curiosity.
"It's simple, just one prick with Silver Needle on the back of your hand, and I guarantee the illness will be cured," Yin Xiaofan said, a slight smile curling up at the corners of his mouth confidently.
