On June 14, today is World Blood Donor Day. The World Health Organization (WHO) celebrates this day from 2004. The aim is to promote donating blood. Today, the importance of donating blood has increased in this round of COVID-19. Plasma therapy has helped in fighting this global epidemic. With blood donation about the World Blood Donor Day, you also know a-to-z about your blood. First, blood, then blood donation and blood donation day.

What are blood and its function:

Blood is a life-line fluid found in our body, which is the basis of life. Blood transmits nutrients and oxygen to cells and also helps to remove waste materials from the body. Blood also performs tasks such as normalizing our body temperature, fighting diseases, wound healing, delivering hormones, and hormone signals to organs. 

Redblood cells, white blood cells, platelets, and plasma:

Blood is composed of different kinds of cells. These cells float in the blood plasma. Red blood cells (Erttgricttes) are called RBC. They act as oxygen transport in the body. 1 microlitre of blood contains RBC ranging from 4.7 to 6.1 million in males and 4.2 to 5.4 million in women. Leukocytes are called WBC. They work to fight bacteria and viruses and protect the body from infection and diseases. 1 microlitre of blood is found in the blood from 4000 to 11000 white blood cells. In addition, 1 microliter of the body contains platelets (thrombocytes) in the number of 2 lakh to 5 lakh in the blood. These cells help in blood clotting.

It is fluid when it comes to plasma. 92 percent of it is water. Plasma contains proteins, glucose minerals, hormones, carbon dioxide in addition to water. Carbon dioxide is transported in the body by the plasma of the blood. In addition, serum albumin, a variety of proteins, and electrolytes are also found in the blood. The hemoglobin and iron elements found in blood cells cause blood red. The heart communicates blood in the body.

How blood cells are formed and how to end:

Inside the bone marrow is a stem cell called stem cell, dividing it into red blood cells, white blood cells, and platelets. Blood cells in the body continue to be formed and destroyed. White blood cells survive from a few hours to a few days. Platelets survive from a few hours to 10 days. Red blood cells can survive from a few hours to 120 days.

Who can donate blood:

The amount of glucose in the blood should be fixed for the body to stay healthy. Hungry belly, its level is 100 mg/dl, and 140 mg/dl after eating should be. At the same time, random blood sugar levels are 200 mg/dl. The blood is alkaline. Its ph level varies from 7.35 to 7.45.

5 Benefits of Blood Donation:

According to researchers, donating blood improves the health of your heart. This reduces the risk of heart attacks, as blood donation makes the blood thinner. This reduces the risk of clotting. Donating blood twice a year also reduces weight and calories. Experts say donating blood also improves liver health and reduces the risk of cancer.

Who can donate blood to which group:

Blood Group A+: A+ or AB+

Blood Group A-: A-, A+, AB- or AB+

Blood Group B+: B+ or AB+

Blood Group B-: B-, B+, AB- or AB+

Blood Group O+: A+, B+, O+ or AB+

Blood Group O- Universal Donor

Blood Group AB+: AB+ (Universal Receiver)

Blood Group AB- AB+ or AB-

Why Blood Donation Day on June 14:

Karl Landsteiner, the noble price winner of 1930 who searched the ABO blood group system, was born on June 14. So, on the day of his birthday, the World Blood Donation Day is celebrated. This year, the theme of World Blood Donor Day 2020 is 'Safe Blood, Saved Life.' At the same time, a slogan has been given,' Give blood and make the world a healthy place' slogan.

Read also: What are community transmission and herd immunization?

What is 'fact-check'? Will it be able to end of spreading fake news

Sony revealed the PlayStation5's futuristic design with exclusive Spiderman game

Image credit: thecsrjournal