University College London Apr 16 2025 Certain common genetic changes might make some people with focal epilepsy less responsive to seizure medications, finds a new global study led by researchers at UCL and UTHealth Houston. Focal epilepsy is a condition where seizures start in one part of the brain. It is the most common type of epilepsy. Antiseizure medication is usually prescribed for people with the condition. However, for one in three people with epilepsy (around 20 million individuals