Plateau reaction refers to the discomfort caused by exposure to low pressure and low oxygen after entering the plateau, involving the cardiovascular, respiratory, nervous and digestive systems. Common symptoms include headache, dyspnea, insomnia, loss of appetite and fatigue.
1. Cardiovascular system: In order to meet the blood supply of cardiovascular and cerebrovascular vessels, the human body will make the blood vessels of the skin and abdominal organs contract, which will lead to a rise in blood pressure and an acceleration of the pulse rate.
2. Respiratory system: After arriving at the plateau because of the lack of oxygen, respiration will deepen and accelerate, with the deepening of the degree of hypoxia, the respiratory frequency will be further accelerated, at this time the human body will feel breathing difficulties.
3. Nervous system: the central nervous system, especially the brain is extremely sensitive to hypoxia, mild hypoxia when the nervous system excitability, manifested as emotional tension, headache, dizziness, etc., with the increase in altitude, hypoxia aggravated, the nervous system will be excited by the inhibitory process, manifested as drowsiness, indifference, slow reaction.
4. Digestive system: In the plateau environment, the secretion of digestive glands and gastrointestinal peristalsis will be inhibited, saliva, intestinal fluid, bile and other digestive juices will be secreted less, while the weakening of gastrointestinal function will lead to a loss of appetite, bloating, abdominal pain, diarrhea, or constipation and other symptoms.
It is recommended that the prevention of plateau reaction be carried out under the guidance of a doctor.