Blood is the red liquid that circulates in the arteries and veins of humans and other vertebrate animals, carrying oxygen to and carbon dioxide from the tissues of the body.. It is found in fluid state in humans and other animals. It delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic, waste products away from those same cells. In vertebrates, it is composed of blood cells suspended in blood plasma.

Blood is a circulatory fluids flows into the viens or arteries. There are 8 different types of blood group and here we are going to discuss about the facts, types, catagories and all explanation about blood group.Blood Group Explanation Types Diet Facts Of Blood Group

Blood Group(Blood Type)

There are four main blood groups (types of blood) – A, B, AB and O(ABO System). Your blood group is determined by the genes you inherit from your parents. Each group can be either RhD(Rheumatic Heart Disease) positive or RhD(Rheumatic Heart Disease) negative, which means in total there are eight main blood groups.

Blood Category

Human blood is grouped into four types: A, B, AB, and O. Each letter refers to a kind of antigen, or protein, on the surface of red blood cells. For example, the surface of red blood cells in Type A blood has antigens known as A-antigens.

How blood groups are different?

Antigens and various proteins float in the plasma and on red blood cells. The ABO grouping system refers to the genetically-determined individual differences in the presence of two antigens (A and B), which stimulate the production of different antibodies.

How is your Blood Group determined?

Actually, your blood group is inherent and are determined genetically. For instance:- The A and B antigen molecules on the surface of red blood cells are made by two different enzymes. These two enzymes are encoded by different versions, or alleles, of the same gene.

The A allele codes for an enzyme that makes the A antigen, and the B allele codes for an enzyme that makes the B antigen. A third version of this gene, the O allele, codes for a protein that is not functional; it makes no surface molecules at all.

Everyone inherits two alleles of the gene, one from each parent. The combination of your two alleles determines your blood type.

Blood Groups Facts

Healthy Eating for Blood Group types:

Type O(+ve or -ve) blood:

A high-protein diet heavy on lean meat, poultry, fish and vegetables, and light on grains, beans and dairy.

Type A(+ve or -ve) blood:

A meat-free diet rich in fruits and vegetables, beans and legumes, and whole grains—ideally, organic and fresh.

Type B(+ve or -ve) blood: 

Foods to focus on are green vegetables, eggs, certain meats and low-fat dairy. Avoid corn, wheat, buckwheat, lentils, tomatoes, peanuts and sesame seeds.

Type AB(+ve or -ve) blood:

Foods to focus on include tofu, seafood, dairy and green vegetables. Avoid caffeine, alcohol and smoked or cured meats.

Exercising for you Healthy Blood Body:

Type O(+ve or -ve) blood:

You tend to be strong and athletic with powerful arms and legs and, because you’re no longer chasing your meals, crave high-intensity workouts like interval training, running, and plyometrics. You use exercise as an emotional outlet, and need it more than other blood types to fight stress and anxiety and boost your mood.

Type A(+ve or -ve) blood:

Intense exercise increases your levels of the stress hormone cortisol and leads to muscle fatigue and stiffness. You do best by opting for calming activities that help you focus and protect your joints, like Pilates, yoga, Tai Chi and isometric exercises.

Type B(+ve or -ve) blood:

 You’ll enjoy group cardio workouts that are slightly lower impact, like tennis or cycling, as well as resistance training.

Type AB(+ve or -ve) blood:

 You tend to get muscle and joint stiffness from high-power cardio sessions, so you’ll be more apt to stick with gentle exercise, like walking, hiking, golf or dance. However, you also tend to internalize anger, so yoga and Tai Chi can be helpful for keeping your mood level and your muscles and joints limber.

Blood Transfusion

Blood transfusion is generally the process of receiving blood or blood products into one’s circular intravenously. Transfusions are used for various medical conditions to replace lost components of the blood. Early transfusions used whole blood, but modern medical practice commonly uses only components of the blood, such as red blood cells, white blood cells,plasma,clotting factors, and platelets.

Risks of Blood Transfusion

Blood transfusions are generally considered safe, but there is some risk of complications. Mild complications and rarely severe ones can occur during the transfusion or several days or more after. More common reactions include allergic reactions, which might cause hives and itching, and fever.

Some other Major risks are:

Bloodborne infections

Blood banks screen donors and test donated blood to reduce the risk of transfusion-related infections, so infections, such as HIV or hepatitis B or C, are extremely rare.

Also rare, these include:

Acute immune hemolytic reaction:

Your immune system attacks the transfused red blood cells because the donor blood type is not a good match. The attacked cells release a substance into your blood that harms your kidneys.

Delayed hemolytic reaction.

Similar to an acute immune hemolytic reaction, this reaction occurs more slowly. It can take one to four weeks to notice a decrease in red blood cell levels.

Graft-versus-host disease.

In this condition, transfused white blood cells attack your bone marrow. Usually fatal, it’s more likely to affect people with severely weakened immune systems, such as those being treated for leukemia or lymphoma.

80 Amazing Interesting Facts About Human Blood Which You Don’t Know !

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1. Nearly 7% of the body weight of a human is made up of blood.

2. Platelets, white blood cells and red blood cells are present in blood.

3. Blood consists of a yellow liquid which is known as blood plasma.

4. Blood plasma is primarily made up of water. 90% of blood plasma is water.

5. Blood plasma also consists of hormones, glucose, proteins, gases, electrolytes and nutrients.

6. Platelets, white blood cells and red blood cells are all found floating in blood plasma.

7. Blood plasma can be separated using centrifuge device which spins blood at a very high speed. The cells then get collected at the bottom of the tube, separating blood plasma from the cells.

8. Only the red blood cells in our blood are responsible for carrying oxygen.

9. Red blood cells consist of hemoglobin. Hemoglobin is actually a protein that contains iron. Oxygen combines with this iron and gives the characteristic red color to our blood as well as hemoglobin.

10. Unlike red blood cells, the white blood cells in our blood form the defensive system of our body. These white blood cells are responsible for fighting viruses, bacteria and other infectious diseases. They also fight cancer cells and other unwanted material that enter human body.

11. Platelets are completely different and are responsible for blood clotting whenever bleeding occurs because of a cut or bruise. This prevents unwanted loss of blood.

12. While blood clotting is meant for good, it can become dangerous. If blood clots in blood vessels of heart, one can experience heart attack. Similarly, blood clot in brain can lead to stroke.

13. Blood is not just responsible for carrying oxygen to different parts of the body. It also carries nutrients to body cells. At the same time, it also carries away unwanted waste material away from the cells.

14. Blood pressure is actually the pressure exerted by blood on blood vessel walls. BP is a vital sign of life.

15. High BP implies increased risk of stroke and heart attack.

16. Average blood pressure will always vary from one person to another despite the fact that standard considered BP is 112/64 mmHg.

17. Though we are familiar with common blood types A, B, AB and O, which is a part of simplified ABO system, there are actually around 30 different recognized blood groups or blood types.

18. An adult body has 100,000 kilometers or 60,000 miles of blood vessels running throughout the body.

19. The average volume of blood present in an adult male body is 5.6 liters while an adult female body contains 4.5 liters of blood on an average.

20. A new born baby will have around 1 cup of blood in its body.

21. Blood plasma we mentioned earlier makes up around 55% of the total volume of blood present in human body.

22. Blood consists of a special type of white blood cell known as granulocyte. These cells roll along blood vessel walls and hunt for bacteria. If they find any harmful bacteria, granulocytes will destroy these bacteria by engulfing them.

23. Red blood cells survive in circulatory system for no more than 120 days.

24. Platelets, plasma and red blood cells are constantly produced by bone marrow.

25. Donated red blood cells cannot be stored for more than 42 days.

26. Donated platelets cannot be stored for more than 5 days.

27. Donated blood plasma can be stored for 1 year in frozen condition.

28. Platelets, red blood cells and blood plasma can be separately donated instead of donating blood as a whole. This type of donation is known as Apheresis.

29. Humans can have artificial heart but there is absolutely no substitute for human blood. There is no such thing called artificial blood.

30. Our body has about 0.2 mg of gold. Most of this gold is actually in our blood.

31. We find pus kind of disgusting but it is actually nothing but white blood cells that died while defending our body against infections.

32. The only place where blood cannot be found in human body is the eye because cornea is capable of directly extracting oxygen from air.

33. Supply of blood in blood vessels located in nose increases when someone catches cold. This happens to keep the nose warm. As a result of this blood vessels dilate and increase mucus production and leads to runny nose.

34. Scientists have come up with a method that can be used to send oxygen directly to blood without using the lungs.

35. Mosquitoes have an uncanny preference to the blood type they suck. They prefer blood group O more than other blood groups.

36. 1,200,000 mosquitoes together need to suck out blood once from a human body to drain out entire blood in his or her body.

37. More than 400 gallons of blood are filtered by our kidneys every single day.

38. Nearly 1/4th of total cells in human body are red blood cells. So, the total number of red blood cells in an adult human body at any given point in time is around 20-30 trillion. The total number of white blood cells in an adult human body is between 4,000 and 11,000. Please remember that these numbers are just best estimates based on size and volume of the cells in comparison to total mass of an adult human body.

39. Nearly 2 million red blood cells in an adult human body die every one second.

40. Nearly 2 million red blood cells are produced in bone marrow every one second so that they can replace the dead cells.

41. Our heart pumps 1.5 million barrels of blood during our entire lifetime. This is enough blood to completely fill 200 tank cars of train.

42. Every two seconds, someone in this world will need blood.

43. The donated blood is actually sold on market collecting 4.5 billion US dollars a year! That’s a huge industry.

44. Donating blood never reduces a person’s physical energy.

45. The amount of fluid lost when donating blood is actually replaced by our body within a few hours.

46. It takes up to 4 weeks to replace the number of red blood cells lost during blood donation.

47. It takes up to 8 weeks to replace the amount of iron lost after blood donation. This is precisely why a person is not allowed to donate blood twice within 8 weeks.

48. On an average, an adult human body (not considering whether male or female) consists of 5 liters of blood which is equivalent to 10 pints of blood.

49. One pint of blood is capable of saving 3 lives.

50. If a person donates blood every 56 days (8 weeks) starting at the age of 17 and stops donating at the age of 79, he or she would donate a total of 46.5 gallons of blood, which is equivalent to 176 liters of blood.

51. Someone in the world actually donates blood every 8 minutes.

52. Out of every 10 people entering hospital will need blood.

53. Anywhere between 2 and 25 units or pints of blood is required during brain surgery.

54. Anywhere between 2 and 5 units or pints of blood is required during hip replacement surgery.

55. At least 4 units or pints of blood may be required for cancer treatment.

56. People suffering from sickle cell disease need up to 4 pints or units of blood every single month to survive.

57. Victims of severe car accidents need up to 50 pints or units of blood before their conditions normalize.

58. Not everyone willing to donate blood is allowed to do so. People are usually screened for transmittable diseases before they are allowed to donate blood.

59. Patients who suffer from anemia require blood transfusion so that the count of red blood cells in their blood can be increased.

60. Shortage of supply of all blood groups increase during both winter and summer holidays. The two most common blood groups that fall short very often are B and O.

61. At the age of 13, a person named James Harrison needed 13 liters of blood for a major surgery. After he turned 18, he started donating blood. It was found that his blood contained a very rare antigen that was capable of curing Rhesus disease. Till date, Harrison has donated blood 1,000 times and is responsible for curing 2,000,000 unborn babies from that disease.

62. Bayer pharmaceutics is possibly one of the most unethical companies in this world. The company once sold blood products that were contaminated with Hepatitis C and HIV. By the time the company learned that the product was contaminated, 10,000 people in US had already contracted HIV. The company did withdraw the products from US market but sold them in Latin American and Asian markets to continue profiting from the products.

63. In Ireland there was a tradition of giving a pint of guinness to anyone who donated a pint of blood. The pint of Guinness was given to replace the iron the donors lost by donating blood.

64. Saddam Hussein, during the late 90s, commissioned some people to write a Quran using his blood. The Quran was written but it remains a paradox for Muslim leaders. A Quran cannot be written using blood because it is a sin in Islam but the Quran cannot be destroyed either because that too is a sin. That Quran exists but no one knows what to do with it.

65. There is a type of fatal blood disease whose only cure is to donate blood. The disease is known as hemochromatosis, which is actually a genetic mutation where too much iron gets absorbed in gut causing toxic iron buildup in organs.

66. George Washington was killed by his doctors. He was actually bled to death. Doctors used the then popular practice of bloodletting to cure his sore throat problem. It was nothing but a method of removing dirty blood. By the time bloodletting treatment was finished, more than half of total blood in Washington’s body had been removed which turned out to be fatal.

67. Blood type is an indicator of a person’s personality – this is what Japanese people believe. Thus, Japanese market is flood with good themed after blood types. Products like books, drinks, condoms etc. with blood-type theme are sold in Japan.

68. Even Facebook’s Japanese version has a drop down option of ‘Blood Type’ for user profiles!

69. Blood can become dark greenish-black in color. This usually happens because of a type of migraine medication.

70. Ancient Egyptians believed that wine was nothing but blood of people who dared to battle against gods. The reason why they believed this is that drinking wine temporarily made people crazy and drove them out of their senses. This is precisely why ancient Egyptian avoided drinking wine.

71. Every year, around 1.3 million pints or units of donated blood is wasted because the shelf life of blood is 42 days.

72. Kidneys are actually responsible for regulating the production of red blood cells in human body. Kidneys are responsible for producing erythropoietin hormone (EPO) that binds with the receptors in stem cell walls in bone marrow and after a complex set of events, the DNA of stem cells are transformed into red blood cells.

73. Kidneys will release EPO only when it finds that oxygen levels in blood have gone below normal. In other words, kidneys are responsible for measuring levels of oxygen in blood.

74. People suffering with kidney failure generally become anemic because kidneys fail to produce enough EPO that can stimulate the production of red blood cells in bone marrow. This however never means that all anemic patients have failed kidneys.

75. The first ever successful blood transfusion was not between humans but between dogs and this event took place somewhere in 1660s.

76. The first ever blood bank of the world was opened in Chicago in year 1936.

77. William Harvey was the first person to describe blood circulation in 1628.

78. The circumference of earth is 40,000 kilometers or 25,000 miles. If all blood vessels in a human body are placed end to end, they can wrap around our earth nearly 2.5 times!

79. Red blood cells are special cells in our body. They do not have nuclei. Because there is no nucleus in a red blood cell, it cannot multiply through cell division because for a cell to undergo cell division, a nucleus is necessary. Thus, red blood cells simply die out after 120 days.

80. Blood has wonderful staining property. It is because of this property that Native Americans often used blood as paint!

Ghost are the most mysterious topic ever on science research. Here we have collect some of the interesting fact about ghost & soul and their existence.

ghost,15 Interesting Fact About Ghost Which You Don’t Know !


1. Science behind the night Ghosts

It is believed that Ghosts and spirits become more active during night time because of reduced or less electronic disturbances making them more powerful with their Ghostly specters.

2. Kids and Animals are likely to see ghost

Kids and Animal are most likely to see and experience the presence of ghosts since they have more level of energy which draws Ghosts to them. Small kids often mistake Ghosts as their imaginary friends.

3. Ghosts stay in the state of dilemma

Most of the spirits and ghosts don’t really know that they are dead and often live in a confusing state which feels like being stuck in a nightmare.

4. They never Sleep

Well, we knew that vampires couldn’t sleep and same goes for the ghosts. They keep on roaming around especially if they want justice after death.

5. Attention seekers

Ghosts like themselves to get noticed and grab people attention. So if you smell perfume or see smoke or fog, you need to know that you do have a company.

6. Mind Readers and Astrologers

It is believed that ghosts can read your mind and also can foresee your future. They try to communicate with you about your future through your dreams. So next time you have a dream about your future, you know who to thank.

7. Ghosts cannot kill you

Oh, don’t get me wrong! Almost all horror movies end with a bloodbath, and it’s true, but ghosts themselves cannot kill you. They use you to kill your own self-taking over your senses and making you insane.

8. Cats can see Ghosts

All animals can sense the paranormal activity around them, but it is always cats who can actually see a ghost. If your cat is staring at the air, it’s time to panic.

9. Friendly Ghosts

Not all ghosts are there to scare you. Most spirits which are not trapped are here to stay in the earthly realm and would not harm you. The ghosts of kids below 1 year are considered angels.

10. Churches are more Haunted than cemeteries

It is believed that ghosts do not stay at their remains or cemetery but prefer to be inside the church.

11. The White house is haunted

It is believed that White House is haunted by various ghosts like Abigail Adams. Also, many guests, presidents, and first ladies, who have lived there, claim that Ghost of Abraham Lincoln never left the house.

12. Cellphones spook away ghosts

In a study by an expert of England, it was found out that cell phones have been killing off ghosts as the ghosts sightings have dropped considerably since the introduction of cellphones. It is because of electronic noise produced by phone calls and text messages.

13. Einstein said Ghosts are real

One of the greatest minds of humanity, Albert Einstein, believed that Ghosts are real. He said that all the energy of the universe is constant and since this energy cannot be destroyed, it can transform into new energy and creation of ghost. Can this get any more logical than this?

14.Ghosts do actually have a sense of humor . 

Ghost have strong humor of smell and sense.

15.Accordance to Law of conservation of Energy.

According to law of conservation of energy, energy neither be created nor be destroyed also also soul are the form of that energy, hence science proved the existence of ghost accordance to the law of conservation of energy.

black hole, intresting facy about black hole

Black holes are among the strangest things in the universe. They are massive objects – collections of mass – with gravity so strong that nothing can escape, not even light. The most common types of black holes are the stellar-mass and supermassive black holes. Stellar-mass black holes are created when massive stars explode, leaving behind a black hole with the mass of just a few suns. Supermassive black holes exist in the hearts of galaxies and usually contain the mass equivalent of millions of suns.

Some Facts About Black Holes :

  • You can’t directly see a black hole.
  • Look out! Our Milky Way likely has a black hole.
  • Dying stars create stellar black holes.
  • Black holes come in a range of sizes.
  • Weird time stuff happens around black holes.
  • The first black hole wasn’t discovered until X-ray astronomy was used.
  • The nearest black hole is likely not 1,600 light-years away.
  • We aren’t sure if wormholes exist.
  • Black holes are only dangerous if you get too close.
  • Black holes are used all the time in science fiction.
  • The massive gravitational influence of a black hole distorts space and time in the near neighbourhood. The closer you get to a black hole, the slower time runs. Material that gets too close to a black hole gets sucked in and can never escape.
  • Material spirals in to a black hole through an accretion disk — a disk of gas, dust, stars and planets that fall into orbit the black hole.
  • The “point of no return” around a black hole is called the “event horizon”. This is the region where the gravity of the black hole overcomes the momentum of material spinning around it in the accretion disk. Once something crosses the event horizon, it is lost to the pull of the black hole.
  • Black holes were first proposed to exist in the 18th century, but remained a mathematical curiosity until the first candidate black hole was found in 1964. It was called Cygnus X-1, an x-ray source in the constellation Cygnus.
  • Black holes do not emit radiation on their own. They are detected by the radiation given off as material is heated in the accretion disk, and also by the black hole’s gravitational effect on other nearby objects (or light passing by).
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