The head is a large and heavy part of a person. In a child, the head can account for a quarter of their total weight. In the adult, the head weighs 10-14 pounds (about 4.5-6.3 kg), and this load has to be balanced by the strength of the neck muscles. In normal upright posture, there [..]

It is difficult to not know someone who suffers from chronic headaches or migraines. In a 2004 study, researchers found 18% of adults experienced a severe headache or migraine during the preceding three months. Migraine headaches, which are characterized by painful, disabling, and recurring symptoms, have no known proven cause, treatment, or cure. They occur [..]