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.
Increasing Blood Oxygen. There are several self help ways I use to increase my blood oxygen. The hierarchy is from the most passive to the most active. What I mean by passive is to get as much oxygen in the body with the lease amount of energy expended.