Headache can be relieved by drinking coffee because coffee contains caffeine components have a certain pain relieving effect.
Caffeine contained in coffee is a kind of alkaloid, which has the effect of relieving pain, reducing fatigue, increasing nerve excitability and making blood vessels dilate moderately. If a mild headache is caused by non-organic factors such as lack of rest or vasoconstriction, drinking coffee is likely to relieve it.
However, coffee as a food can not be used as a headache treatment, long-term excessive consumption of coffee may also affect the human nervous system and cardiovascular system.
There are many causes of headaches, such as high blood pressure, cervical spondylosis and so on, which may cause headaches. If you have headaches, you need to go to the hospital to find out the cause of the headache and then treat it.
If the symptoms of headache and persistent and no improvement, it is recommended to consult a doctor for a clear diagnosis and standardized treatment, so as not to delay the condition.