 [ Symptoms ] does a person get a high from capsule medical marijuana does it dull pain or just make the pain tolerable  could this help a 95 year old who is in severe pain from spinal stenosis and arthritis does it really have any long term effects on memory [ Disease ] in most cases    about seven in 10 people    the cause of epilepsy is unknown in other cases epilepsy can have a symptomatic cause such as birth injuries head injuries and infectious diseases including meningitis and encephalitis it can also be caused by genetic conditions and stroke