Insomnia is one of the common complications in patients with cancer and seriously affects their quality of life and clinical efficacy. Based on years of clinical practice， Professor HU Kaiwen holds that the fundamental cause of cancer-related insomnia lies in spleen-kidney

yang

deficiency， leading to the accumulation of phlegm-fluid， which disrupts the communication between

yin

and

yang

， prevents

yang

from entering

yin

， and ultimately results in insomnia. Based on this understanding， Professor HU applies the classical theory that "those suffering from phlegm-fluid retention should be treated with warm drugs"， taking "warming" as the fundamental therapeutic principle for cancer-related insomnia. By warming and tonifying the spleen and kidneys to treat the root， and by warming and transforming phlegm-fluid and eliminating obstruction based on syndrome differentiation to treat the manifestations， both root and manifestations are addressed simultaneously. This approach restores the healthy

qi

， eliminates pathogenic factors， harmonizes

yin

and

yang

， and calms the mind， thereby achieving significant therapeutic effects.