A number of Adults, children and adolescents, male or female, suffer from persistent and recurring headaches. A person feels headache pain as a result of the interaction between the brain, blood vessels, and surrounding nerve areas. For the duration of a headache, specific nerves of the blood vessels and the head muscles will be triggered which send pain signals to the brain.

The mechanics of how this pain is triggered and transmitted to the brain are abnormally active nerve cells send signals to the blood vessels, causing constriction, followed by the dilation of these vessels and the subsequent release of prostaglandins, serotonin, and other inflammatory substances that cause the pulsation to become painful. However, the why still remains to be a big mystery to medical science.

Sudden headaches are mostly due to an illness, infection, cold or fever. Sinusitis, pharyngitis or ear infection may be the cause of sudden headaches including head trauma or very rarely as an adverse result of a serious medical condition.

Stress; poor posture, irregular sleeping habits are also contributory factors that can cause headaches.

Some triggers that cause headaches include second-hand cigarette smoke, certain types of perfumes, stress, pollution, noise and lighting. Unregulated physical exertion can also trigger headaches in adults and children.

Medical science has identified several types of headaches along with at least 150 diagnostic categories. A few are pointed out below.

Tension Headaches are the most common type of headache amongst adults and children. It is also sometimes called continual daily headaches or unremitting non-progressive headaches. Tension headaches are characterised by mild to moderate pain, which come and go over an extended period of time.

Migraine headache pain ranges from minor to acute characterised by an incessant, throbbing pain that may persist anywhere from 60 minutes or more than 24 hours and occurs with regularity. People suffering from migraines get symptomatic indicators such as heightened sensitivity to light, loud noises or odours, vomiting, loss of appetite and or abdominal pain.

Although migraines are related to contractions of blood vessels and other changes in the brain, the exact causes are still undetermined.

Mixed Headache Syndrome is actually an occurrence of both migraine and tension headaches that are in some cases also called transformed migraines; this type of headache is common among adults and children.

Cluster Headaches are headaches that occur from at least three times a day, in groups as well as in long-drawn-out periods, which sometimes may last as long as 2 weeks to 3 months. Cluster headaches sometimes subside for extended periods, only to happen again. It is an uncommon kind of headache but the pain is the most severe and intense, comparable to burning pain or knife-cut sensation. The severity of the pain is such that sufferers cannot sit still for the duration of an attack. The pain tends to be localized in the eye region.

Sinus Headaches are normally associated with incessant pain in the areas of the cheekbones, forehead or bridge of the nose and usually increase with rapid head movements. They often develop along with other symptoms of sinus.

Acute Headaches are mostly observed in children, and can occur unexpectedly with symptoms that recede on their own after a relatively short period of time.

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