Stroke

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Articles on Stroke

Stroke is one of the leading causes of death and serious disabilities among adults in the world.  A stroke may be simply defined as a change in body function caused by interference or when there is an alteration in blood supply to the brain.  Since the major part of the brain is called the cerebrum, strokes are often referred to as CVAs - cerebral vascular accidents.  Usually, the "accident" is rather sudden, and the resulting loss of function may range from a minor change in speech to severe paralysis or coma.

 

A stroke, or cerebral vascular accident, happens when a blood vessel, bringing oxygen and nutrients to the brain, either ruptured or blocked by blood clot or some other particles.  Due to this, there will be insufficient supply of oxygen and nutrients to the brain, resulting in nerve cells in the affected area of the brain cannot function and will die within minutes.  As such, physicians define stroke as "a sudden disturbance in the supply of blood to any segment of the brain; this affects the functions controlled by that part of the brain - such as those areas that oversee speech, movement or wisdom."   When these nerve cells cannot work, the part of the body they control cannot work either.   Sad to say, the devastating effects of stroke are often permanent because dead brain cells cannot be replaced.  The human brain has hundred billion nerve cells and trillions of nerve connections.  Although it is only two percent of our body weight, the brain uses 70 percent of our body's oxygen and other nutrients.  Because the brain cannot store these nutrients as muscle can, it requires a constant flow of blood to keep working properly.

 

As different parts of our brain control different parts of the body, warning signs of a stroke depend on the part of the brain that is affected.  One of the obvious signs of a person who has had a stroke is weakness or numbness on the face, leg, or arm, especially on only one side of the body.  Confused and not able to understand what others are saying.   The person will also have trouble speaking, vision from one or both eyes may be affected, feel dizzy, severe headache, and cannot balance when walking.  According to experts, the following are symptoms of stroke.  If you experience one or more of the below signs, see your doctor immediately.

  • A sudden feeling of numbness or weakness in the face, arm, leg or one side of the body

  • A sudden cause of confusing, gibberish speech and comprehension

  • A sudden problem with vision in one or both eyes

  • A sudden severe headache with no known cause

  • A sudden inability or difficulty in walking, loss of balance and coordination

 

  1. Causes of Stroke

  2. Coping with Strokes

 

 

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