Have you ever got any headache? Most likely your answer would be yes. Do you know why? Actually there can be many root causes for that. Do you know that even hot air, high temprature or low air pressure can also cause headache?
A study on around 7000 patients at Beth Israel Deaconess Medical Center in Boston, Massachusetts, between May 2000 and December 2007, was done to understand the relationship between headache and environment factors like  temprature, air pollution and barometric pressure. The outcome was that severe headache risk increases about 7.5 percent for each 5 degree temperature increament.

According to Dr. Kenneth Mukamal, lead author and physician at Beth Israel Deaconess Medical Center, "fairly consistently, it was warmer on the days that individuals came in than on control days before and afterwards." Still the connection between temperature and headache is not well understood. On the other hand, the study could not establish direct corelation between pollution and headache.

It appears that more work is still required to find the actual cause for various types of headache. Migrain is also a specific type of chronic headache which is hereditary and predominant among women. A study shows that about 18 percent of women and 6 percent of men in the United States are suffering from migraines.

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