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Unfortunately, headaches are one of the most commonly experienced medical ailments. There are various causes to headaches and it is important to know the difference between these causes, as they can define what is easy to treat and what is a more serious condition.

Tension headaches are one of the most common forms of headache and can feel like a tight band wrapped around the head. Medical technology is still uncertain as to the cause, but it is suspected that tension headaches are caused by muscles in the face and scalp being tightened, or by chemical reactions in the brain.

Migraine headaches are a much more severe form of headache, which can produce symptoms that include vomiting, sensitivity to light and sound, as well as increased irritability. Experts believe that migraine headaches can be triggered by certain foods, changes in hormonal activity, stress in one's life, as well as lack of sleep. Migraine headaches are often treated using prescription medications, although it may take some trial and error to find the right medication to match the individual.

Furthermore, individuals with diabetes or eating disorders may experience headaches when they have not had proper food intake on a given day. Dehydration, as the result of an eating disorder, has been known to cause headaches. Also, if someone has spent time an increased amount of time being exposed to lights and moving images, such as found in television, movies, video games, or on computer screens, eye strain may occur, possibly causing headaches. Finally, hyper mastication, or increased jaw muscle movement due to chewing, can cause headaches.

In the medical field, experts classify headaches into different categories. Vascular headaches are caused by swollen blood vessels in the head and scalp. Migraine headaches are considered to be vascular headaches. Additionally, headaches that are caused by increased muscle tension are classified as myogenic head pain. Headaches can also be caused by trauma or injury, leading to what is called cervogenic head pain. Typically, this involves injury to the spine or neck and can go away after the injury has healed.

In more severe cases, traction and inflammatory headaches are considered to be medical emergencies. Traction headaches can be caused by a tumor or hematoma, meaning that the nerves have been stretched beyond capacity, leading to intense pain. An inflammatory headache is one that is caused often by serious medical conditions that can affect the spine, teeth, neck, ears, and jaw.