the arrival of extremely cold weather has also led to the reduction of the inventory of Jiangsu blood center. A recent news report reported that a pregnant woman had amniotic fluid embolism enzyme and used up nearly 1 / 10 of the inventory blood. There are two reasons for this phenomenon. On the one hand, the number of unpaid blood donation has decreased sharply due to students’ holidays and a large number of employees going against their hometown. On the other hand, extremely cold weather hit southern China, resulting in frequent accidents and increased blood use.
we all know that blood types are divided into four types, and now in Jiangsu, in addition to type a blood emergency, type O blood is also in a state of emergency. People’s blood donation is not only an honor, but also an act of saving other people’s lives. Many people have some misunderstandings about blood donation and think that blood donation is a harmful behavior to health, which will lead to the decline of resistance, but it is not. Today, let’s learn about the benefits of blood donation to the body, who is not suitable for blood donation, and even what needs to be done after blood donation.
1. Benefits of blood donation
1. Promote the reconstruction function of blood
the composition of blood mainly includes 55% – 60% plasma, 40% – 45% blood cells, etc., and there is more than 90% water in plasma. Blood also has a certain life span. Generally, the life span of red blood cells is about 120 days, that of white blood cells is 9-13 days, and that of platelets is 8-9 days. Therefore, this also leads to the aging and death of 40 ml of blood cells every day, and of course, new cells will be produced. If you don’t donate blood, these cells will also die, and the blood loss caused by blood donation will stimulate the bone marrow, urge the bone marrow to release the reserved mature cells, stimulate the hematopoietic function of the bone marrow, generate blood cells, and is more conducive to the renewal of blood in the body.
2. Reduce blood viscosity
blood plays four major roles in the human body, namely transporting substances, regulating body functions, and maintaining the excitation and defense of human tissues. Transport substances not only refer to nutrients, but also metabolize the garbage produced by various organs in the human body out of the body.
with the improvement of modern people’s living standards, the garbage in the blood is also increasing. Fat is a kind of garbage in the blood, which makes the blood more viscous, and these fats will adhere to the blood vessel wall. On the one hand, it makes the elasticity of blood vessels worse and is prone to arteriosclerosis. On the other hand, the blood viscosity becomes thicker, which slows down the blood fluidity and reduces the oxygen supply and detoxification function of the blood.
and blood donation can just reduce the viscous blood in blood vessels, resulting in water filling the blood volume, which can dilute the blood and reduce the fat in the blood, which is naturally more conducive to the health of blood and cardiovascular. In addition, high blood lipid is also an important reason for blood viscosity. Blood donation only indirectly alleviates the problem of blood viscosity, and reducing blood lipid is the fundamental.
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3. Reducing the content of iron in blood
iron supplementation is a popular topic. Iron deficiency will not only lead to anemia, but also reduce resistance and affect growth and development. 3.7 billion people worldwide are iron deficient, but most are women and children, and few are men.
male blood donation can reduce the content of iron in blood, because high iron content will increase the incidence of heart disease and increase the risk of stroke. Therefore, the benefits of male blood donation are more.
2. Who should not donate blood
there are many benefits of blood donation, but the people who donate blood have strict regulations, which are not suitable for anyone.
1. People with diseases
first, people with infectious diseases should not donate blood, which is an indisputable problem. Moreover, it is not only infectious, but also some people carrying the virus can not donate blood, otherwise it will cause others to be infected with diseases.
secondly, people with hypertension, organ resection, chronic skin diseases, mental diseases and other people should not donate blood. In addition, people with cancer or benign tumors affecting their health should not donate blood.
2. A special female group
women in menstruation, pregnancy, abortion and childbirth should not donate blood, and women are very prone to anemia. Therefore, women in anemia should mainly supplement blood and take good care of their body before they can donate blood. Anemia will lead to physical weakness and poor resistance. It is not only that you can’t donate blood.
3. Do not donate blood during medication
some drugs will affect the recovery of the body after blood donation and affect the people receiving blood. Therefore, these people should not donate blood. In addition, blood examination should be done before blood donation to avoid transmitting the disease to others.
III. how to do after blood donation
after blood donation, many people will have discomfort, such as dizziness, tension and weakness. In fact, this is not a disease. It may be caused by insufficient rest, low blood sugar and excessive fatigue. These people need to pay more attention to rest.
first of all, if blood donation is good, we should pay attention to protecting the needle eye to avoid adverse conditions such as infection.
secondly, pay attention to rest and supplement water, which is also conducive to blood regeneration. Water supplement can alleviate the discomfort caused by blood loss, but it is not suitable to drink tea, otherwise it will lead to serious iron loss.
in addition, pay attention to eating blood supplement food. Blood donation will only reduce the amount of regenerated blood in the body, but will not cause anemia. In order to better restore the blood to the normal level, eating blood supplement food is more conducive to recovery.
conclusion: at the beginning of the article, we mentioned that the frequent accidents and the return of blood donors led to the lack of type a blood in Jiangsu blood center. Blood donation is not only an honor, but also a public welfare act to save his life. Through blood donation, you can prevent diseases and become another person who hopes to donate blood.