Oran Knowlson, 13, from Somerset has suffered from Lennox-Gastaut syndrome, a treatment-resistant form of epilepsy, since he was three. But a new brain implant has reduced his seizures.Oran Knowlson, 13, from Somerset has suffered from Lennox-Gastaut syndrome, a treatment-resistant form of epilepsy, since he was three. But a new brain implant has reduced his seizures.Read MoreHealth News | Mail Online