Migraine headaches are extremely common and can last from a few hours to three days. Unfortunately, these headaches are one of the least understood and poorly treated medical disorders, since they are likely result of a complex interplay of genetic, environmental, and neurological factors that vary from person to person.
Moreover, the experiences of those suffering from migraines also vary to a great extent. Besides the common symptoms such as throbbing, searing pain, which may or may not be one-sided, some patients also experience “auras” prior to onset, while others do not.
Migraines may also cause chills, sweating, nausea, vomiting, fever, and/or sensitivity to light, sound, and smells in some cases.
Research has shown that more than 300 million people worldwide — about 6 to 7 percent of men and 15 to 18 percent of women — suffer from migraine headaches, and an estimated 20 million migraine attacks occur every single day.
Causes Of Migraine
The causes of migraines have been examined in a great number of studies, but none of them can fully explain the occurrence of migraines in all sufferers. Sometimes these theories can be conflicting, but the majority of them asserts that the causes of migraine include:
-Excessive increase of blood flow in the brain. On the other hand, some studies state that these headaches are not preceded by constriction and decrease in blood flow, but rather by an increase of nearly 300 percent. Nevertheless, once the migraine attack is in full swing, circulation appears normal, or only slightly reduced.
— A neurological disorder related to nerve cell activity. Migraines are believed to occur due to a neurological disorder related to nerve cell activity that sweeps across your brain, causing pain.
–Changes in the brain chemical serotonin. Migraine pain is also believed to be caused in the case of swollen and inflamed blood vessels, including those in the brain, as soon as the levels decrease.
-Vascular constriction in the brain. Migraines may occur from initial blood vessel constriction and a decrease in blood flow, followed by dilation and stretching of blood vessels, which activates the neurons which indicate pain.