Headaches are one of the most common discomforts of pregnancy. Especially in the first trimester, headaches may occur more frequently than usual.
Exactly what causes migraine headaches isn't known. But migraines appear to involve changes in nerve pathways, neurochemicals, and blood flow in the brain.
Researchers believe that overly excited brain cells stimulate a release of chemicals. These chemicals irritate blood vessels on the brain's surface. That, in turn, causes blood vessels to swell and stimulate the pain response.
Coping with headaches in pregnancy: Changes to your lifestyle may help prevent headaches. Try to get more regular rest and relaxation. You could try a pregnancy yoga class, for example. If you're having problems sleeping, you can find out more about tackling this in tiredness and sleep in pregnancy.
Taking paracetamol in the recommended dose is generally considered safe for pregnant women. However, there are some painkillers you should avoid in pregnancy, such as those containing codeine, unless prescribed by your doctor.
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