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High blood pressure cuts migraines

People with high blood pressure appear less likely to suffer from migraine than those with low blood pressure, according to Norwegian research.

In the study, researchers tested the blood pressure of 51,353 men and women and asked participants to fill in surveys on the presence and frequency of headaches, and their use of blood pressure medications.

The risk of headache or migraine was reduced by 40% in people with raised systolic blood pressure compared with those with lower blood pressures. The researchers suggesting high blood pressure might affect the baroreflex arch, which can suppress pain.

Neurology 2008;70:1329–36

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