Headache, also termed cephalgia, is pain or a feeling of discomfort in the head, scalp or neck region. The cause of headaches varies with lifestyle (eating habits, stress, depression, anxiety and so on). The various types of headaches are tension-type headache, migraine headache, rebound headache, cluster headache and sinus headache. The occurrence of headaches can be gradual or sudden, lasting from a few hours to several days. Diagnosis of headaches and measurement of response to treatment have been aided by a number of recently developed tools. The treatment of headaches can be medicinal or non-medicinal.