Lack of oxygen to the brain causes cerebral hypoxia. The National Institute of Neurological Disorders and Stroke, or NINDS, explains that in this condition there is decreased oxygen supply to the brain although the blood... More »

Symptoms of mild brain damage from a lack of oxygen, or cerebral hypoxia, include short attention span, poor coordination and faulty judgment, according to MedlinePlus. Signs of more serious cerebral hypoxia are coma, in... More »

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Lack of oxygen to the brain can cause cognitive symptoms such as difficulties in self-expression and understanding others as well as behavioral symptoms, including heightened aggressiveness and flat affect, states WebMD.... More »

Lack of oxygen, or hypoxia, can be caused by a wide range of medical and environmental factors. Externally, lack of oxygen is usually the result of exposure to low-oxygen environments, such as those at high altitudes. Th... More »

Lack of oxygen to the brain can cause cognitive symptoms such as difficulties in self-expression and understanding others as well as behavioral symptoms, including heightened aggressiveness and flat affect, states WebMD.... More »

Lack of oxygen in the brain will cause permanent brain damage in as little as four minutes. Another four to six minutes without the brain receiving blood will result in increased brain damage, coma and then death. In ord... More »

A possible cause of sudden muscle weakness in one or both legs is stroke, which is a potentially fatal condition that reduces oxygen supply to the brain, states Healthgrades. Other potential causes of leg weakness includ... More »