<s>[INST] What happens during a stroke?     [/INST] During a stroke 32,000 neurons die per second. Blood clots stop the flow of blood to the brain and without oxygen and nutrients from blood, brain tissue starts to die within minutes – resulting in a sudden loss of function. Source: LOWELL GENERAL HOSPITAL. Link: https://www.lowellgeneral.org/care-and-services/emergency-services/resources-and-education/frequently-asked-questions-about-stroke. Field: Neurology. Disease: Stroke </s>