Primary Headaches: An In-Depth Review

Abstract

A headache is defined as a pain in any area of the head. This pain can be described as a dull or sharp sensation and maybe throbbing or soft, depending on the severity of the headache. Headaches can be unilateral or bilateral, focal or multifocal, or even radiating in a focal point. They can develop gradually or happen abruptly and may last from a few minutes to weeks. Some causes of headache can range from stress and physical or physiological trauma to changes in the weather or environment.