Factors that actually exist in the body, are chronic infections, disorders of water-electrolyte metabolism, destruction of enzyme systems of the body (liver disease, bowel, pancreas). These processes result in a violation of the processes of tissue respiration - hemic hypoxia.
Respiratory hypoxia develops in violation of the transport of oxygen from the air through the membranes of the alveoli of the lungs. By this mechanism hypoxia in chronic and acute inflammatory processes in the lungs, which are complicated by respiratory failure.
When violations of motor function of the heart and heart failure with severe heart disease develops circulatory hypoxia.
Hidden hypoxia is a frequent companion rather large list of diseases, and it is due to reduced oxygen levels in the blood, or its assimilation processes develop fatigue, weakness, yawning, the usual. With the progression of pathological processes develop palpitations, headache, nervousness and lack of confidence in their own abilities, can appear fluctuations in blood pressure.
The main danger of acute hypoxia - the development of severe and pronounced changes in the treatment of which may require treatment and resuscitation. Effects of chronic hypoxia develop slowly, gradually, but the destructive effects of oxygen deprivation on the body continues to affect all the time. That leads to hypoxia excess free radicals, which are considered "blame" early aging destruction of the immune system, leading to the development of neoplasms.