In the cultural context of the Chinese people, "red" is often considered an ominous color.
Generally, it indicates negative information like "warning," "problem," or "error."
Using this color to mark the [Body Map] actually means highlighting areas of the body that have issues.
From Nan Zhubin's perspective, during Li Mingchen's accidental fall, the problem doesn't only lie in his dizzy mind but certainly also in his weak body due to long-term dieting.
To be more specific, it's the "stomach."
If Li Mingchen could mark the stomach red at this moment, then everything would be smooth, showing that Li Mingchen has gained cognition during the time he didn't see Nan Zhubin and has realized his problems.
On this basis, Nan Zhubin even thinks that today's session might be finished in forty minutes.
But not marking it red is also within expectations; just proceed with the process.
After the blue and red pen, Nan Zhubin handed over the green pen.