Although medical science has not yet found the exact cause of headaches,

some of the most common causes are related to everyday stress. Headaches are broken down into three basic categories. A primary headache occurs to millions on a daily basis. Primary headaches constitute the vast majority of headaches, and are almost never life threatening.

Despite this frequency of occurence and a lack of life threatening danger, the primary headache can be very uncomfortable. Cluster headaches are a far more serious form of headache, that although not life threatening, can cause debilitating pain. Secondary headaches are sometimes a sign of a deeper neurological issue.

It is believed that over 90% of primary headaches, which most people experience, can be blamed on tension. The muscles that surround the skull sometimes contract, putting too much pressure on the head. This can cause a severe amount of pain. Although the reasons for skull muscle contraction are difficult to ascertain, it is commonly seen as a result of emotional or physical stress.

Significant emotional stress typically results in a contraction of the muscles, and therefore a tension related headache. Prolonged physical stress, such as extended manual labor, is also known to cause tension headaches.

Cluster headaches are a far rare occurence, and usually only afflict a tiny segment of the population. Sufferers usually experience cluster headaches only for a small window of time, thus the name "cluster" headache. This can make prevention and treatment difficult.

When a cluster headache occurs, severe and debilitating pain usually follows. Water running from the eyes and nose are common with cluster headaches. A cluster headache should be treated as soon as possible.

Secondary headaches usually represent a more serious issue.

This occurs on a far rarer basis than primary headaches. A secondary headache can signify a deeper neurological issue at work.

Headaches that occur on a chronic basis should be cause for a check with the doctor. Secondary headaches can be quite painful, and may also be accompanied by other symptoms, such as sensory phenomenon.

Evan