A headache can be defined as pain that is felt in the head or upper neck. The type of pain associated with a headache may be described as dull, sharp, constant, throbbing, mild or intense. Headaches are one of the most common health-related conditions and are usually caused by more than one factor.…
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About this article
Author: Dr Nikki Wallis PhD, BSc
First answered: 17 Oct 2014
Last reviewed: 19 May 2018
Rating: 4.3 out of 5
Votes: 361 (Click smiley face below to rate)
Category: Headache