In this video, Dr. Li Zheng examines the benefits of acupuncture therapy for people dealing with cancer. Recent studies have shown that acupuncture can strengthen the immune system, which can help cancer patients recover more quickly from treatment. Acupuncture has been shown to enhance the regular movement of the stomach and intestines, so cancer patients can achieve better digestion, free of nausea, diarrhea and constipation. Also, certain acupuncture points can help the body produce more relaxing biochemicals such as gamma-aminobutyric acid (GABA), serotonin and progesterone, so patients can relax more during and after chemo or radiation therapy and, frequently, experience better sleep quality; sleep, good digestion, a healthy diet and a happy mood are the four key factors crucial to achieving optimal health.