Which herb is known for calming the spirit and addressing irritability and depression?

• A. Bai Zi Ren
• B. Yuan Zhi
• C. He Huan Pi
• D. Suan Zao Ren

Answer: (C)

The key idea is soothing the mind by releasing liver constraint. Irritability and depressive mood in TCM often come from stagnation of liver qi that disturbs the spirit. He Huan Pi directly targets this by relaxing the liver, alleviating constraint, and calming the shen, which reduces irritability and promotes a more settled mood. Because of this targeted effect on emotional disturbance, it’s especially effective for irritability and depression linked to emotional stress.

Other herbs in this group have important roles but not as directly tied to calming the spirit through liver constraint. Bai Zi Ren nourishes heart blood to calm the mind, often used for insomnia from deficiency; Yuan Zhi calms the spirit and can help with anxiety and mental clarity, but it’s broader in function and not as specifically focused on irritable or depressive mood driven by liver constraint; Suan Zao Ren nourishes yin and blood to calm the spirit, commonly used for insomnia due to deficiency rather than emotional constraint. So the herb best suited for calming the spirit with irritability and depression is He Huan Pi.