What are the benefits and disadvantages of donating blood for the human body 10

To summarize the disadvantages of blood donation that are hotly discussed on the Internet, it mainly focuses on the worry of contracting infectious diseases when donating blood, in fact, this is a completely unnecessary worry, because the needles and blood bags used in blood collection and supply institutions across the country are disposable medical consumables that have been strictly tested and qualified by the state, and there are strict operating procedures and requirements for blood collection.

Don't listen to what scientists say, after donating blood, the immune cells in the body decrease, and the resistance decreases, how can the resistance be improved?

Once I donated blood, and it rained a little bit that day, and I caught a cold without an umbrella.

If you usually get drenched in the rain for a long time, you'll be fine.

Those words were just encouraging people to donate blood.

In addition, the function of the body is to maintain the homeostasis of the body's internal environment, and the decrease in blood breaks the internal environment.

I'm a medical student, and I used to want to donate blood when I saw a blood donation vehicle, but now I don't have that idea.

Donating blood is indeed good for others, but it is not good for yourself.

China has carried out unpaid blood donation activities for a long time, and many people are also very curious, what kind of impact will blood donation have on the human body? Let's take a look.

1. Benefits. 1. Make people healthier.

For people who insist on long-term, moderate blood donation, their bone marrow hematopoietic system will be constantly stimulated, the proportion of fresh blood cells will be significantly higher than that of people who have not donated blood, and blood donation will also reduce blood viscosity. Some scientific studies at home and abroad have shown that blood donation can not only make people more clear-headed, but also make people healthier.

2. Reduce the incidence of coronary heart disease.

Blood donation can have a positive impact on the cardiovascular and cerebrovascular systems, thereby reducing the incidence of cardiovascular and cerebrovascular diseases.

3. Reduce the incidence of cancer.

Iron is one of the essential elements for the human body, but studies have found that if the amount of iron in the body exceeds 10% of the normal value, it increases the risk of cancer, and blood donation can help the body excrete too much iron. In this sense, donating blood can reduce the incidence of cancer.

Second, the disadvantages. Proper blood donation is not harmful to the body, and healthy and age-appropriate blood donors will not affect their health if they meet the conditions for blood donation. As long as you choose a regular blood donation station or hospital to donate blood, and follow the advice of staff or doctors, you will not be harmful to your health.

The benefits of blood donation are that it can reduce blood viscosity, enhance hematopoietic function, reduce cardiovascular and cerebrovascular diseases, etc., and the disadvantages are that it can cause syncope, anemia, infectious diseases, etc.

Benefits of Blood Donation:

1. Blood donation can reduce blood viscosity.

Blood donation reduces blood viscosity and increases blood flow velocity, thus alleviating and preventing hyperviscosity.

2. Blood donation can enhance hematopoietic function.

Blood donation can enhance the skills of hematopoiesis, as long as we donate blood many times, the response to the reduction of blood will be more sensitive, the speed of blood replenishment will be faster, and we will be able to maintain the hematopoietic function in a vigorous state.

3. Blood donation can reduce cardiovascular and cerebrovascular diseases.

Blood donation can reduce cardiovascular and cerebrovascular diseases, because the important factors that predispose to heart disease are excess iron and copper in the blood.

Disadvantages of donating blood:

1. Blood donation causes syncope.

For first-time donors, blood donation may induce syncope if they are too nervous or tired before donating blood, or if they are in a state of starvation.

2. Anemia caused by blood donation.

Blood donation can cause anemia, and if the donor is malnourished and donates too many times in a short period of time, anemia may occur.

3. Blood donation may infect diseases.

Blood donation may infect diseases, which is caused by lax disinfection and sharing of blood collection equipment, but this phenomenon does not exist as long as it belongs to a formal national blood collection institution.

The total blood volume of an adult is about 4000-5000 ml. The weight standard for blood donation is set at 50 kg for men and 45 kg for women. A person donates 200-400 ml of blood at a time, accounting for only 5%-10% of the total blood volume, plus the blood drawn out is the blood of the peripheral blood vessels, the human body will automatically release the blood originally stored in the spleen, liver and other internal organs into the blood vessels, maintain a constant blood volume, and the water and inorganic substances lost after blood donation will be replenished in 1-2 hours; Plasma protein, which can be replenished within a day or two; Platelets, white blood cells, and red blood cells also return to their original levels.

Therefore, blood donation will not affect the health of blood donors. Therefore, healthy people donating blood according to the regulations will not have any effect on the body. After donating blood, the body's hematopoietic tissue will automatically accelerate hematopoiesis, and it can generally return to the original level after half a month.

Appropriate nutrition is increased to provide sufficient raw materials for blood production, and the focus of supplementation is on protein, iron, vitamin B12, folic acid, etc., which are needed for hematopoiesis. It is worth reminding that if you take a lot of tonic and are inactive, it will not be conducive to the digestion and absorption of nutrients, resulting in gastrointestinal dysfunction, and you will gain weight due to excess calories.

High levels of iron in the human blood can significantly increase the risk of heart disease, and donating blood in moderation can greatly reduce the amount of iron in the blood. It will not hurt to donate blood in moderation, protect the puncture hole after donating blood, and properly supplement nutrition.