High Blood Pressure May Be Buffer Against Headaches

A new study suggests that people with hypertension are less likely to have problems with headaches and migraines. The study found that participants with high systolic pressure were 40% less likely to have headaches while participants with high pulse pressure were 50% less likely to have headaches, compared to those of normal blood pressure.
The suggested explanation is that the higher the blood pressure is, the stiffer the blood vessel is going to be, and thus the less likely the nerve endings are activated for an action potential, such as feeling pain. This study, however, is still subject to further investigation, since the blood pressure is a crude measurement and headaches might be related to other factors.

Link: http://www.nlm.nih.gov/medlineplus/news/fullstory_63408.html