Why human blood is Red | Sometime Blue?

human blood is Red

The topic of this article is very intriguing! Isn't it?

Colour of Human blood?

From a little child to older people, everyone knows the answer.

The answer is very easy. Human blood is red!

With a small twist, No!

The color of blood is not red.

Blood looks red to our naked eyes. When it is examined under a microscope, the color may show changes.

It does not mean that human blood is not red in any way.

The fact is the redness of the blood is a macroscopic feature.

Human blood looks red due to the presence of hemoglobin in the blood.

Hemoglobin is rich in iron, and this is the reason human blood reflects red color.

On the other hand, the blood of lobster, crab, and octopus looks blue.

The reason for their blue blood is the presence of the protein elements in their blood cells.

The protein carrying oxygen in their blood cells is hemocyanin.

The color of hemocyanin is blue. This way, these aquatic animals’ blood reflects blue color.

According to prevalent tales, the color of a Vulcan’s blood is green. The reason might be that the element that carries oxygen in Vulcan’s blood is green.

About Human Blood

Human blood is red.

The color of its redness varies with the variation of circulation medium.

The blood looks bright red when arteries carry oxygen-rich blood from the heart to different parts of the body.

On the contrary, our blood looks darker and dull when the blood flows back to the heart through the veins from different body parts.

According to some published articles, the blood inside our human body sometimes becomes blue.

Blue? Why? Is it possible?

No! Human blood is not blue, neither outside nor inside. Several pieces of evidence have proved this fact.

a. In case someone falls and cuts his/her hand or leg, you will see that the pouring blood is all red.

Blood shoots out from the arteries and comes out of the body in a bright reddish color.

b. When we go to pathological labs for blood tests, the blood that is drawn through a syringe is nothing but red.

As we have already discussed earlier, what is the color of human blood?

Human blood is red because of the presence of hemoglobin or red blood cells.

Blood changes the shades of color sometimes, with the variation of absorption and replenishment of oxygen. Logically, the color never changes from red to blue.

It changes from bright red to dark red and vice-versa.

Veins that are visible through our skin look bluish at times.

Yes! That is true. There are also valid reasons behind this.

The blue color of the vein depends on the way the tissues absorb and reflect the light.

This might be the reason when we hurt ourselves in some parts of our body; the skin looks bluish.

In extreme cold, our lips become bluish due to this reflection issue only.

If you could cut your vein to see the color inside the vein, you could see that there is nothing blue about blood. It is all red.

There might be some connection to the myth that says blood is blue because it is carried only through veins.

Following this myth and convention, arteries are colored in red and veins in blue in the textbooks.

Both young and mature students may have taken these color divisions as an indication of the color of blood.

The misconception grows further with the wrong guidance of the teachers sometimes.

Some teachers also believe that the original color of blood is blue.

To think neutrally, the example is very resistant to reality. We need to understand the matter from an objective perspective.

When uneducated people challenge the scientifically proven facts about such vital topics as the reliability of vaccines and the dangers of fossil fuels, it seems logical to understand the relevance of the thought.

This is the reason why such terrible false ideas are still so strong in their position.

Now, it is not all about ignorance or lack of education.

There are plenty of children and young students who do not have any experience to witness the colour of blood, but, still, they believe that blood is blue as some elderly people told them so.

More surprisingly, the people who have been wounded or have seen accidents also incline to think that blood is truly blue in color.

Despite all the shreds of evidence, when you believe in misconceptions and robustly speak in favor of falsehood, it is more troublesome.

It is purely the result of prejudices.

Here, the question is, Why such ignorance towards truth?

As the proverb goes, "Little knowledge is a dangerous thing".

Little knowledge may be the reason in this case as well.

If one wishes to believe in something blindly, thousands of proofs are not enough to convince them because they are already firm on their place.

If you understand a concept from a wrong approach initially, falsehood becomes the root of your knowledge.

To conclude this article, we can say "Ignorance is bliss", but it is not true. Individuals with conventional concepts rooted inside have lost the urge to learn something new and real.

Here we can only suggest you see blood in real, read the textbooks with an unbiased approach, and look at your arms and veins.

We hope, if you possess this kind of falsified opinion and now, you are reading this article, you learn the truth and circulate this knowledge among others you know.