Central ischaemic response

Central Ischaemic Response is the brain's response to chronic lack of blood circulating the system. The brain has already increased blood flow, breathing and supply to the brain, leaving a person feeling shivery, sick, hot and sweaty. All that is left is the response which will relieve the Central Ischaemic Response in the legs and allow blood to flow back around the system. It is more commonly known as fainting.