Why the link: Migraine headache are caused by inflamation of the areteries surrounding the brain. Other arteries inside the brain may spasm during an attack as well, temporaily cutting off circulation, thus increasing the odds of a stroke.
Additional risks: Abnormalities in the lining of arteries may also allow blood to clot more rapidly. And in rare cases , arteries leading to the brain may tear more easily. These tears can cause vessels to narrow and clots to form. Extra oestrogen from oral contraceptives (especially in smokers) or hormone therapy can further boost clotting factors to create a perfect storm for a stroke.
How to reduce the risk: Ask your doctor about taking low-dose aspirin. It has been shown to decrease stroke risk in women over 45 and may prevent migraines. Your doctor can also help you reduce the risks associated with abnormal arteries. Maintaining healthy blood pressure in one way, but also ask your physician to order a routine blood test to determine whether you have markers for increased clotting.
If you do, discuss aspirin therapy, anticlotting medications, or alternatives to hormone therapy.
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