Strokes affect billions of people every year and can always be deadly. Some occur suddenly; some have pre-stroke indications. TIA’s, or transient ischemic attacks, may or may not happen prior to a stroke. During a TIA, a blood vessel going to the head or neck becomes partially occluded, and this decreases the oxygen there for the brain. During a TIA, an individual usually experiences symptoms such seeing that dizziness, double eye-sight, blurred vision, or even a loss of consciousness.
There are two types of strokes. The first is ischemic. Ischemia occurs when the blood vessel becomes blocked along with the brain doesn’t have enough oxygen to work properly. The blockage occurs by something occluding the vessel, after which it the blood supply is turn off. Therefore, brain activity will be inhibited as the fuel supply is not adequate.
The second type of stroke is hemorrhagic. A hemorrhagic stroke is more life-threatening than an ischemic stroke. With this sort of stroke, the blood vessel basically bursts, causing bleeding within the particular skull. More damage occurs with this sort of stroke.
People that have undergone a stroke have much the same characteristics. Usually, one side of the body does not work as well at the some other side. For example, the right side may appear stiffer compared to the other side. This stiffness or inability to move directly relates to brain function. If the right side in the body is rigid, this can be traced back to the left side of the brain. Short or long term memory can be impaired.