According to the World Health Organization, acupuncture is appropriate for specific conditions related to digestive, emotional, gynecological, neurological, and respiratory symptoms. Specific maladies include headache, neck pain, back pain, allergic rhinitis, arthritis, asthma, hypertension, nausea and vomiting, adverse reactions to chemotherapy, gastrointestinal disorders, induction of labor, stroke, depression, anxiety, facial pain, postoperative pain, sciatica, tennis elbow, insomnia, weight loss, infertility, and smoking cessation. The above list is by no means comprehensive of what acupuncture treats.