“Headaches are extremely common. Almost everyone sometimes has a headache. When repeated, it is a symptom of headache disorder”~World Health Organization
Do you know what causes general headaches? If not, you are not alone.
The answer, according to WebMD, is somewhat complicated: the nerves of the head muscles and blood vessels are turned on and transmit the pain signals to the brain. As for why these signals are activated in the first place, even the most brilliant minds are puzzled.
Episodic headaches are the most common. About 90 percent of all headaches are episodic. Episodic headaches last from 30 minutes to several hours. Chronic headaches are more consistent and last for quite some time.
And then there are headaches that do not go away. This rare form of headache, which can last for years, is known as the new daily constant headache, and experts have no idea what causes it.
At the worst types of headaches:
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