When you go to the universe in the zero gravity state, this change will occur in the human body

Unlike the ground where gravity always stretches towards the ground, unlike the ground where weightlessness (weight free) is released from gravity like inside a spacecraft, various differences that can not be seen on the ground are born. It is the same for the human body, but a movie about how the astronaut who actually experienced the zero gravity situation talks about it is released.

This is What Outer Space Does to Your Body - YouTube


"When you go to the universe where gravity is zero, funky things will happen to your body," said NASA's Leland Melvin astronaut. It is an astronaut who has experience in space and space twice in 2008 and 2009.


By the way, Mr. Melvin is a man who is known for dog lovers. I took this dog in a studio secretly when I was wearing a space suit and photographing it, this kind of picture was taken. It seems that this photo is to be adopted as it is as an official photograph.


The first change in the body is "length of the spine".


As you know, the human bones have small bones stacked ... ...


On the ground is the force which is always crushed by gravity. However, since human beings have received gravity all the time since they were born, there is little state to be conscious of the influence.


However, when going to outer space where gravity does not work, it will be released from the force holding down the body ......


Especially cartilage is influenced even in the backbone, and the astronaut's height becomes a little longer.


It is hard to get into this state, and some astronauts complain of back pain. Therefore, some people sleep with rolling their bodies to apply pressure to the backbone.


A change also appears in the condition of the heart.


Needless to say the heart is moving to deliver blood throughout the body ... ...


In space, its size will be smaller.


This is one of changes due to weightlessness. On the ground, a great force is needed to send blood from the feet to the upper body without defeating the gravity ... ...


In a zero gravity space, it is very easy to surmount blood throughout the body.


For that reason, the heart does not need much power, and the muscles that are producing force are likely to become thinner.


The effect on bone strength also appears.


On the ground with gravity, the body's bones, especially the leg bones that receive the whole body weight, are always subjected to great forces. However, in the zero gravity state, the load on the bone decreased at once. Then, calcium is lost from the bones, and the strength of the bones gradually decreases.


"Therefore, the astronauts have to tie the body to the running machine and have to do the training with the legs applying force," astronaut Melvin said. Apparently it seems that various influences will come out more than thinking "The universe seems to be convenient as it can move easily".


And it seems surprising that the sight loss is low.


The human eyeball is made of gel-like material and has evolved to work well in the state of gravity "1 G" on the ground.


When such a human goes to the universe in the zero gravity state, the balance collapses, and the shape of the eyeball changes and some people are affected by sight.


Therefore, some astronauts correct eyesight by wearing eyeglasses. Also, it seems that glasses of various degrees of strength are prepared on the ship of the spaceship so that any situation may happen.


In this way, even if you see only the influence on the human body in the universe, the universe still has nothing to know. This may also be a material that will stir up the quest for a world that you do not know yet.