You must know the issues before giving blood.......

How many people have the ability to save a man during his lifetime? James Harrison is a person who saved the lives of two million children. Actually, it is so.
Delivering the life of so many children, voluntary and free of charge, by donating plasma and blood components to Plasma.
The Australian citizen has also written his name on Guinness World Records.
According to Wikipedia's information, 81 years old Mr. Harrison gave blood 1,173 times on May 11th. This was his last blood donation in Australia due to the age of blood donation.
At the age of 14, emergency surgery required 13 liters of blood. Harrison He survived the blood and took his blood and saved his life.
After 18 years of age, he started giving blood regularly. It is possible to save a person with blood. That is why it is called the world's greatest and non-profit gift.

Why is blood needed?

In the event of an accident, blood circulation is needed for the treatment of cancer or any other complex disease, surgical or childbirth or therapeutic diseases.
However, the number of blood donors in Bangladesh is still insignificant compared to the population. According to statistics, eight to nine million bags of blood per year in the country, but the collection of blood is six to six million bags. The deficit is more than three lakh bags.Besides, only 30 percent of the collected blood comes from voluntary donors. Most people still depend on blood donation for professional donors if they are not family members or acquaintances.
Due to lack of blood, many patients face life crisis every year. It takes only 10 to 12 minutes to give blood to one bag. It is possible to save one's life in this short period of time.

Who can donate blood?

According to doctors, adult healthy men and women can offer blood at specific time only if they want.
Head of Hematology Department of Sir Salimullah Medical College University. Sirajul Islam said that between 18 and 45 years, physically healthy women and men could donate blood.In this case, men should have at least 48 kgs and at least 45 kg of women.
In addition, during blood transfusion the blood pressure temperature should be below 99.5 Fahrenheit and pulse speed between 70 and 90 and blood pressure should be normal.
In men, blood glucose is 15 grams per desiliter and 14 grams for females.The blood donor must be free of viral diseases, respiratory and dermatitis. Normally after 90 days, that means blood will be given after three months.
Normally, the healthy healthy body contains blood of 4 to 6 liters of blood. Every year 450ml of blood is given. Because of this, there is no risk of damage if you donate blood.

What happens after giving blood?

After giving blood some head can rotate. It's normal. However, at least one to two hours of the rest of the walk, the man suggested to take rest. Sirajul Islam
If the donor is sweating and is uncomfortable, then he advises to give him saline.
After giving blood, it takes at least one to one and a half months to go back to the normal level of red blood cells. Sirajul Islam
He said, while giving blood, 250-300 milligrams of iron is reduced as well as blood from the body, so he has suggested to eat more foods containing iron and protein rich in his diet.

Who can give blood?

Blood Group Total 8 types: AB positive, AB negative, A positive, A negative, B positive, B negative, and positive, and negative

Benefits of giving blood:

Talking to different blood banks of the country, there are some benefits of giving regular blood flow. Those are:

1. It is possible to save a human life.

2. There is less risk of regular blood donation from cancer.

3. Three times a year, the amount of red blood cells in the body increases. The bone marrow is active in it. Fast blood deficiency is met.

4. Blood cholesterol levels decrease, blood pressure is in control. As a result, the risk of heart disease and heart attack is greatly reduced.

5. Calories that cost blood, play an important role in weight loss and blood pressure control.

6. Whether there is any major disease like hepatitis B, hepatitis C, jaundice, malaria, syphilis, HIV or AIDS in the body, it is known free of cost.

7. Increases immunity.

8. If blood donors need blood themselves, then blood banks arrange them with blood.
   
   According to the World Health Organization statistics, 92 million people of the world donate blood every year. But in the developed world, the voluntary blood donation rate is one thousand and 40, but in the developing world, less than 4,000 people per 1,000 people. World Health Organization aims to ensure 100 percent blood supply through voluntary donation by 2020.World Blood Donor Day is being observed on 14th June every year. The day is celebrated to give recognition, acceptance of the donation of those who voluntarily and free of blood donated to save lives and also to encourage the common people to donate blood.