Headaches are one of the most common medical complaints. Nearly everyone gets one at some point in their lives and over 45 million Americans suffer with chronic headaches each year. Headache disorders are a major contributing factor to disability and lost-work time world-wide. Altogether, diagnosis and treatment of headaches make up 20% of all visits to neurologists.

What Nurses Know...Headaches is written by a nurse who has experienced having headaches all of her life. There are risk factors that are not changeable like genetics, for example. But others, such as stress, diet, or...