A stroke is a potentially life-threatening event in which parts of the brain are deprived of oxygen.
The most common type of stroke is an ischemic stroke, which involves a blockage of blood (usually
in the form of a blood clot) that supplies oxygen to the brain. The other main type of stroke is a
hemorrhagic stroke, which involves bleeding in or around the brain.
( From iVillage Your Total Health Center)
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