The human body is probably the most complex creation in this world. Although science has made tremendous progress in understanding its compositions, there are still some unanswered questions. Here are some mind-blowing facts about the human body.
The human eye is the fastest muscle
Orbicularis Oculi is the fastest moving muscle in the human body as it has the ability to contract at a speed of 1/100th of a second. An eye blink lasts for 100-150 milliseconds making the eye the fastest muscle on the human body, hence the quote, ‘in the blink of an eye’.
Human beings are 99% identical
Human DNA comprises 3 billion bases, over 99 percent of those bases are the same in all humans. The visual variances or internal dissimilarities are due to a tiny variation in genetics between each human being.
You are tallest in the morning
Due to the earth’s gravitational force, throughout the day, human cartilage compresses to make us faintly shorter as our organs settle in the daytime. But after we wake up in the morning after a long sleep, our stomach appears flattered and our clothes seem hanging.
Humans produce 25 million cells every second
As this happens, every new cell replicated is strictly from our DNA template. As the human body ages, this DNA template wears down and there are errors in cell reproduction hence causing illness or diseases. As the DNA template fades, humans age.
We can’t breathe and swallow concurrently
This mechanism is an evolutionary protective process to save humans from accidentallychoking on food or our own saliva. This is the body’s defense means to swallow any unwanted thing accidentally.
Yet, there is no explanation for human yawn
Yawn is a natural reflex that we can’t control and is often associated with sleep; even animals’ yawn. But we really don’t know why we yawn. Some believe it is to enhance oxygen supply while others state it is to regulate the human body temperature.
Our largest organ is the skin
Skin is around 15 % of the human body weight and is a crucial defense system as it keeps everything external from entering the human body. It also provides us to touch and feel, regulates the body temperature, and makes us move around effortlessly.
There are over 100,000 miles of blood vessels in a human body
This includes communicating little capillaries, veins, and arteries. Although this might sound an exaggeration, imagine that every muscle, nerve, organ, and even skin in the human body needs blood to function properly.
This information will make you wiser about your own body.
