FASCINATING FACTS ABOUT THE HUMAN BODY

Our human body is a very wonderful machine.it is more complex, better made, and has the ability to do more kinds of work under more conditions. Have you ever wondered about its systematic function? It works just like a car engine system does. If any part of it breaks down, the whole process can get its impact. The same happens in our body too. How all these can happen? Wanna know? Then, let's see some fascinating facts about the human body.

How much blood is there in our body?

The blood amount depends on two factors: how much you weigh and where do you live. If you are 36 kg, you will be probably having 2 1/3 liters of blood in your body.

If you are double that weight, the blood content will also be doubled. According to location, if you are living at high elevations like mountain tops, there will be less oxygen level in the air than at ground level. In such a situation, your body has to manufacture more blood to circulate extra oxygen to make the body function and development perfect.

If you’re straightening out your blood vessels, how long would it be?

It would be about 161,000 km long. This sweeping length would be the same as if you circle the world at the equator 4 times.

Do you think the heart takes any rest?

Your answer would be `No’. Because, we would think that if the heart does take a rest, then it can make the human recess forever. It was believed that the heart is the only organ that can never remain in rest mode. Because it has to work whether you are awake or asleep. But it's not exactly true. The function of the heart is to continue contraction and expansion. The blood pumps out, when it contracts and it gets fill during expansion. Some scientists assert that this expansion time is a period of rest for the heart. Some other researchers claimed that the heart takes a rest for a fraction of a second between heartbeats.

Why do we yawn when we feel sleepy?

The answer is just simple, to take in more air. When we feel sleepy or when we’re getting bored, our body is in a relaxed mode and no senses are being stimulated. In such situations, our breathing becomes shallow and lungs demand more air. This required oxygen is inhaled by a reflex action named yawning. During ancestral times, early men used to yawn in the wild forest whenever they wanted to stay alert and thus preventing themselves from falling asleep.

How can the human body hold these long blood vessels?

Most of the blood vessels are thinner than a hair’s breadth. Imagine a road system, the main superhighways are like the arteries and veins, which are the largest blood vessels. The millions of tiny capillaries which are only visible through a microscope are like tiny roads.

Our body is a miracle. Every single breath that goes in and out of the nostrils, every single movement, every single reflex, everything matters. So, keep your miracle healthy and active.