A jiffy bag http://xnxxwwwxnxxcom.in.net/ xxx bf Epileptic seizures are caused by electrical overactivity in the brain, says Bernard Chang, of Beth Israel Deaconess' Comprehensive Epilepsy Center, also an associate professor at Harvard Medical School. Non-epileptic seizures may "occur in the setting of stress or emotional upset, and they may represent a form of psychological reaction to difficult circumstances."