A stroke occurs when a blood clot blocks a blood vessel or artery, or when a blood vessel breaks and interrupts blood flow to an and bleeding occurs into an area of the brain. Every stroke is different.
ETA Chlorophyll works on the Liver and probably works a little. No it really doesn't, you are not a plant. Tea will oxygenate the blood. No it won't Also don't do as someone else said and drink liquid oxygen, that's really not a good idea.
This links to blood, oxygen and muscles because when stroke volume increases the volume of blood increases (when stroke volume increases cardiac output increases), this means that more oxygen can then be delivered to the working muscles so this is how blood, oxygen and muscles link to cardiac output.