Tell me about epilepsy?

I recently learned a friend was epileptic and I would really like to have more insight on this illness. If anyone could tell me more about it, I'd greatly appreciate it.
Thanks :)

My ex had 'apple-pepsi' as we called it, and he would have grand mal siezure quiet often (extremely scary) The docs sed it was cause of the drug history he had but infact a big bump on the head he copped and then created a cavity or something in the brain. There are medications you can get to allow them to release seizures coming on.

Just they need to take the meds!!

More info:
Epilepsy (from the Greek 蔚蟺喂位畏蠄委伪 /epili蝿psia/ ) is a common chronic neurological disorder characterized by recurrent unprovoked seizures.These seizures are transient signs and/or symptoms of abnormal, excessive or synchronous neuronal activity in the brain.About 50 million people worldwide have epilepsy, with almost 90% of these people being in developing countries. Epilepsy is more likely to occur in young children, or people over the age of 65 years, however it can occur at any time. Epilepsy is usually controlled, but not cured, with medication, although surgery may be considered in difficult cases. However, over 30% of people with epilepsy do not have seizure control even with the best available medications. Not all epilepsy syndromes are lifelong 鈥?some forms are confined to particular stages of childhood. Epilepsy should not be understood as a single disorder, but rather as a group of syndromes with vastly divergent symptoms but all involving episodic abnormal electrical activity in the brain.

Here is the epilepsy foundation's website.
There is too much to tell here, you need to read about it.

http://www.epilepsyfoundation.org/