Group 1 - The article discusses various types of insomnia and their corresponding traditional Chinese medicine treatments [1] - Insomnia types include liver qi stagnation transforming into fire, phlegm-heat disturbing the heart, heart and spleen deficiency, and heart-kidney disharmony [2][3][4][5] Group 2 - The liver qi stagnation type is characterized by difficulty falling asleep, irritability, and a red tongue with yellow coating, often seen in individuals under stress [2] - The phlegm-heat type presents with insomnia, chest tightness, and a slippery pulse, commonly found in those with poor dietary habits [3] - The heart and spleen deficiency type shows symptoms like palpitations and fatigue, typically affecting those with chronic illnesses or excessive fatigue [4] - The heart-kidney disharmony type includes symptoms such as night sweats and dizziness, often seen in menopausal individuals or those with sleep deprivation [5]