Headache could be a sign of stress or emotional disorder and could result in conditions such as high blood pressure, migraine, anxiety as well as depression. Some of the common causes of headaches include alcohol induced hangover, concussion, dehydration, brain tumor, brain freeze, blood clot as well as problems in those structures of the head that are sensitive to pain.

Medical marijuana provides significant relief from the pain and discomfort of cluster headaches resulting for better sleep, have fewer muscle aches, and experience an improvement in mood.