What are the dangers of hypoxia to the human body, and what are the dangers of hypoxia to the human

Prolonged lack of oxygen to the brain can cause irreversible damage and even brain death. General "lack of oxygen in the body" can cause damage to physical health, even if it does not directly threaten life.

Oxygen, like food and water, is the key substance of the body's metabolic activities, is the first need for life movement, nutrients must be oxidized, in order to produce and release chemical energy.

Hypoxia refers to oxygen deficiency, which is a general term for the state of hypoxia or oxygen deficiency in the air. Nature provides basic living conditions for everyone, however, if we are in a special environment where there is a lack of oxygen, or although there is no lack of oxygen in the environment, we cannot take in enough oxygen due to our own reasons, or we cannot make full use of the oxygen we inhale, the human body will undergo functional, metabolic and morphological changes. This state is generally referred to as hypoxia or hypoxia.

Therefore, medical scientists divide the causes of hypoxia into environmental hypoxia, pathological hypoxia, physiological hypoxia and exercise hypoxia.

Dangers of hypoxia :

Regardless of the cause, hypoxia can change the body's function and metabolic state. The nervous system is most sensitive to hypoxia. Even mild hypoxia may cause intellectual and visual disturbances.

The brain is the organ that requires the most oxygen among the organs of the human body. The weight of the brain is only 2 3 of body weight, and the oxygen consumption of the brain accounts for 20 30 of the total oxygen consumption of the body. Fifteen percent of the blood output from the heart is supplied to the brain.

However, the brain tissue itself has almost no reserves of energy-supplying substances, and all of them rely on the oxygen in the fresh blood brought by the brain circulation to maintain survival and perform normal physiological functions. As a result, brain tissue has the lowest tolerance for hypoxia (ischemia).

Chronic mild hypoxia of the brain can cause symptoms such as drowsiness, distraction, and memory loss, followed by impaired consciousness, convulsions, lethargy or coma, and even death. If the blood and oxygen supply to the brain is completely interrupted, you will lose sensation in 8 15 seconds, and irreversible damage will be caused in 6 10 minutes. 。

The heart is also an organ with a large oxygen consumption, a high metabolic rate, and low oxygen reserves, so it is also sensitive to hypoxia and is most vulnerable to damage. Severe hypoxia and continuous hypoxia can reduce myocardial contractility, slow heart rate, and reduce blood output from the heart, forming a vicious circle with hypoxia symptoms, and even degeneration and necrosis of myocardial cells. Persistent chronic hypoxia predisposes to heart failure.

Severe hypoxia directly inhibits the respiratory center, weakening breathing, or tidal respiration, or even respiratory arrest. 。

Hypoxia will lead to a decrease in the aerobic metabolic rate in the body, the enhancement of anaerobic digestion, the reduction of the body's metabolic efficiency, and the decrease in immunity.

**Four minutes:

1: Brain < for 4 minutes, which is reversible and does not cause shock.

2:>4 minutes, causing irreversible brain cell necrosis, the survival rate is very low, and it can cause death.

Ordinary hypoxia: symptoms such as drowsiness, distraction, and memory loss may manifest, followed by impaired consciousness, convulsions, lethargy or coma, and even death.

It will affect the normal work of the brain, resulting in dizziness, poor cardiovascular and cerebrovascular operation, and a long time is very affecting health.

Lack of oxygen in the human body is harmful! There are several signals of lack of oxygen to the brain that many people ignore.

There are many causes of hypoxia in the human body, including strenuous exercise, anemia, respiratory diseases, heart failure, poisoning, etc. If there are uncomfortable symptoms, you should see a doctor in time to find out**.

1.Strenuous exercise: When vigorous exercise occurs metabolism increases, resulting in an increase in oxygen demand and symptoms of relative hypoxia.

2.Anemia: When the human body is anemic, the hemoglobin decreases, resulting in a decrease in oxygen carrying capacity and the symptoms of hypoxia.

3.Respiratory diseases: e.g. chronic obstructive pulmonary disease, respiratory failure, decreased lung function leading to hypoxia.

4.Heart failure; Decreased ejection after left heart failure leads to pulmonary congestion, causing ischemia and hypoxia.

5.Poisoning: For example, cyanide poisoning, after poisoning, it affects the metabolic reaction in the body, causing the body tissues to be unable to use oxygen, causing hypoxia.

Diseases of the respiratory system.

There are lesions in the respiratory system and obstruction of respiratory function, which can easily lead to obstruction of the process of oxygen transmission in the lungs and hypoxia, and chronic obstructive pulmonary disease, airway obstruction, and pulmonary ventilation dysfunction are common.

Congenital disorders.

Patients with congenital heart disease are prone to hemodynamic disorders, that is, abnormal blood shunting and obstruction of exchange, resulting in obstruction of the oxygen exchange process in the lungs, and the body cannot get enough oxygen, resulting in hypoxia, such as atrial septal defect, pulmonary artery stenosis, pulmonary hypertension, ventricular septal defect, and tetralogy of Fallot.

Blood disorders.

Hematologic lesions will bind oxygen in the blood, and the transportation process will be impaired, resulting in the body not getting enough oxygen supply, hypoxia, common anemia, carbon monoxide poisoning, methemoglobinemia, etc.

Circulatory diseases.

When the blood flow is blocked, it encounters obstacles in the process of circulation in the body, which can easily lead to insufficient oxygen delivery power, and tissue cells cannot obtain sufficient oxygen supply, resulting in hypoxia, common heart failure, shock, arteriosclerosis, vasculitis, thrombosis, compression of blood vessels, thromboembolism, vasospasm, etc.

Perinatal disease.

For neonates, perinatal diseases are prone to unpredictable emergencies due to the influence of the mother, environment, and individual, resulting in obstruction of neonatal circulation and hypoxia, such as neonatal aspiration pneumonia, neonatal intrauterine distress, etc.

Respiratory diseases, congenital diseases, blood diseases, circulatory diseases, etc. may lead to hypoxia, if there is a phenomenon of hypoxia, it is recommended to prepare some portable oxygen inhalation equipment at home, such as vitality oxygen, etc., when the use of hypoxia, will have obvious effects.

Oxygen is a key substance for maintaining the vitality of the body's immune function, which determines the speed and quality of the body's metabolism. Only when people get enough oxygen, the nutrients of food are converted into energy and supplied to various tissues and organs, so as to ensure the normal operation of the immune system.

The dangers of hypoxia in the human body.

1. Nervous system damage.

The brain is the brain where the nervous system is most sensitive to hypoxia. The first symptoms of the brain in the early stages of hypoxia are feeling tired, having difficulty concentrating, and memory loss.

2. The circulatory system is damaged.

A mild lack of oxygen to the heart can cause a disturbance in the heartbeat rate. When hypoxia worsens or does not improve, cardiac contractility decreases, the heartbeat slows, and myocardial necrosis occurs over time.

3. Respiratory system damage.

When the human body is severely hypoxic, it will directly inhibit the action of the respiratory nerve center, so that breathing will be weakened, and in severe cases, it will lead to respiratory arrest.

4. Tissue cell damage.

Cellular hypoxia causes decreased cell viability. Hypoxia of cells and tissues will further affect the balance of extracellular electrolytes and the pH balance of the human body, and in severe cases, it will lead to histiocytic acidosis or alkalosis.

1. It increases the number of red blood cells in the body, the blood viscosity is high, the peripheral vascular resistance is increased, the burden on the heart is increased, heart failure is caused or aggravated, and it is easy to induce cerebral thrombosis; Long-term hypoxia of the brain can produce a series of psychiatric and neurological symptoms: such as sleep disorders, mental decline, memory loss, abnormal behavior, personality changes, etc.

2. Long-term severe hypoxia can cause pulmonary vasoconstriction, resulting in pulmonary hypertension, increased burden on the right ventricle, and pulmonary heart disease in the long run; Hypoxia can aggravate hypertension, increase the burden on the left heart, and even cause arrhythmias;

Hello, the lack of oxygen can have adverse effects on the human body, the main one of which is the nervous system. When the body is deprived of oxygen, brain cells are damaged, and symptoms such as headaches, insomnia, memory loss, dizziness, and mental fatigue occur. In addition, hypoxia can also affect heart muscle cells, leading to myocardial ischemia, which can lead to heart diseases such as angina pectoris, arrhythmias, etc.

In addition, hypoxia can also affect the lungs, causing damage to lung cells, which can lead to diseases such as emphysema and pneumonia. In addition, hypoxia can also affect blood circulation, resulting in poor blood circulation, which can cause symptoms such as dizziness, nausea, and difficulty breathing. Therefore, hypoxia can have adverse effects on the human body, and hypoxia should be avoided as much as possible.

Low blood oxygen is caused by the inability of oxygen molecules to enter the blood, and the degree of damage to the body can be judged according to the results of oxygen partial pressure in blood gas analysis. In acute hypoxia or acute respiratory failure, a partial pressure of oxygen of 90 mmHg is considered hypoxic. The diagnostic criterion for respiratory failure is a partial pressure of oxygen of 60 mmHg, in which the absence of oxygen causes brain cells to be deprived of oxygen, resulting in drowsiness, and persistent severe hypoxia can lead to coma.

Partial pressure of oxygen below 60mmHg can cause cardiac damage, resulting in heart failure, decreased myocardial contractility, severe arrhythmias, and decreased cardiac output will lead to a drop in blood pressure. Persistent hypoxemia can cause gastrointestinal ischemia and hypoxia, resulting in gastrointestinal impairment, intestinal dysfunction, and intestinal flatulence, which is a manifestation of acute hypoxia to intestinal injury. In the early stage of hypoxia, patients can have irritability, cyanosis of the lips, shortness of breath, and the partial pressure of oxygen is continuously lower than 60mmHg, which will cause coma and multi-organ dysfunction, which is the harm caused by acute hypoxia to patients.

Patients with chronic hypoxia in clinical practice or in daily life, such as when oxygen is relatively thin at high altitude, will develop chronic hypoxia because the oxygen concentration in the plateau area cannot reach 21% of the oxygen concentration in the plain area or at sea level. When chronic hypoxia lasts for a long time, hemoglobin will compensate for the increase, in order to improve the oxygen-carrying capacity, but it will cause the blood viscosity to increase, lead to thrombosis, and eventually cause chronic organ damage, so this also needs to be paid attention to.

If the elderly are in a state of long-term hypoxia, it will actually affect life, and it will also lead to low immunity, and it is easy to get sick, it is recommended to use some auxiliary means to help the body improve the hypoxia situation, you can try O2ark's hyperbaric oxygen chamber, long-term insistence on using it can help improve the body's hypoxia situation, and can also help improve blood microcirculation, remove free radicals, and have a certain antioxidant effect Unified understanding.

People always have to experience old age, sickness and death, and people cannot take in enough oxygen due to their own reasons in middle age, so various body parts begin to decline gradually, and various diseases come uninvited. So, what are the dangers of hypoxia in middle-aged and elderly people? Let's take a look.

Middle-aged and elderly people cannot take in enough oxygen due to their own physiological reasons, the function of various tissues and organs in the body begins to decline, the immunity is low, and a variety of common diseases are uninvited. According to the statistics of Chinese geriatric clinical research, many middle-aged and elderly people also suffer from a variety of diseases at the same time, and 85% of the elderly suffer from 3-9 diseases at the same time, up to 12 kinds of diseases. For example, cerebral hypoxia is very prone to cerebral stroke, which catches people off guard, because of its severe disability and high level, middle-aged and elderly people are most afraid of sudden stroke, talking about stroke and discoloration.

1. Cause stroke and sudden death.

If there is a lack of oxygen in the body, the blood viscosity will increase, and the blood flow will not be smooth, resulting in ischemia and hypoxia in the heart and brain, causing myocardial infarction or cerebral infarction; At the same time, poor blood flow can cause blood vessels to shrink, causing blood stasis to block, leading to blood vessel rupture, sudden stroke and sudden death.

2. Aggravate the condition.

Hypoxia in the body - will accelerate the decline of tissue function, making hypertension, coronary heart disease, bronchitis, emphysema, COPD, asthma, diabetes and other conditions aggravated, and the lack of oxygen in the body can also hinder the body's absorption of drugs, and severe hypoxia will cause respiratory failure and death.

3. Cause all kinds of diseases.

Lack of oxygen in the body - it will slow down the blood velocity, the nutrients required by various tissues and organs of the body will not be met, the function will accelerate the decline, the immune function will decline, and various diseases will invade one after another, and symptoms such as dizziness, black eyes, nausea, chest tightness, shortness of breath, palpitations, and insomnia often occur.

Introduction: Oxygen is an indispensable thing in our daily life, and once the body is deprived of oxygen, many diseases will appear. However, hypoxia is very common in life, and most people are troubled by the problem of hypoxia.

Today, let's take you to find out, what are the symptoms of hypoxia? What's the harm?

1. What is hypoxia?

Hypoxia mainly refers to the pathological process in which the functional and metabolic structure of tissues undergoes abnormal changes due to insufficient oxygen supply to tissues. And hypoxia is the most common pathological process in clinical diseases. Lack of oxygen in the brain, heart and other parts is an important cause of human death.

Hypoxia mainly refers to the lack of endogenous oxygen, which is the oxygen that binds to cells.

2. What are the symptoms of hypoxia?

The human body sends oxygen to the blood through breathing, once there is not enough oxygen in the blood, human beings will be fatigued, and if the body is deprived of oxygen, it will lead to insufficient oxygen supply to the brain, which will lead to memory decline and thinking ability in the long run. And in the state of hypoxia, the ** tissue will also be dull and very dull. When there is pain in a joint part of the body, it may also be a symptom of hypoxia, because when the body is deprived of oxygen, it will cause the balance between the surrounding sodium and potassium and cells, resulting in the deposition of mineral elements in the body and inducing joint pain.

3. What are the dangers of hypoxia?

Lack of oxygen can harm the heart because when the heart does not supply enough oxygen, the myocardium will be deprived of oxygen. The most typical symptom is chest tightness, which can lead to heart disease if it occurs in the long term. And hypoxia will also cause people to insomnia, some people will say that insomnia is only caused by excessive mental tension, but in fact, the brain has been in a tense state, so it is ultimately the brain hypoxia.

Lack of oxygen in the body can also lead to high blood pressure, because when the body is deprived of oxygen, the body will produce some body reactions to increase the amount of blood, which will cause high blood pressure symptoms.