Former Israeli President Shimon Peres is responding after suffering a serious stroke. His doctor says, Mr Peres, 93, is being sedated and ventilated in a hospital near Tel Aviv to let his brain recover. <br/><br/>Dr Rafi Valden said Mr Peres squeezed his hand when the sedation was reduced, appearing to be awake and listening. His condition is critical but stable. Mr Peres was taken to hospital for examination yesterday after suffering from a headache.