Sunday, April 14, 2013

CAUSES OF MIGRAINE


The causes of many chronic daily headaches aren't well understood. True (primary) chronic daily headaches don't have an identifiable underlying cause. Some possible factors may include:
  • You've developed a heightened response to pain signals.
  • The part of your brain that suppresses pain signals isn't working properly.
 Other frequent headaches may be caused by various underlying diseases or conditions
,including:
  • Inflammation or other problems with the blood vessels in and around the brain, including stroke
  • Infections, such as meningitis
  • Intracranial pressure that's either too high or too low
  • Brain tumor
  • Traumatic brain injury
Many people who have frequent headaches are actually experiencing a rebound effect from taking pain medication too often. If you're taking pain medications — even over-the-counter analgesics — more than three days a week (or nine days a month), you're at risk of developing rebound headaches

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