Could humans have evolved to survive without air and water?

First of all, let's talk about air, people breathe to take in oxygen, which everyone knows; As you may know, the atmosphere filters a certain amount of ultraviolet light, allowing life to survive on land. But air has another effect on human beings, pressure. The effect of atmospheric pressure on the human body helps to constrict blood vessels and other functions, and if there is no atmospheric pressure applied to the human body, blood vessels may be dangerous.

People walk, talk, write, and work all consume oxygen, and even when people are resting, their hearts are still beating and their lungs are still breathing, all of which require oxygen consumption.

The oxygen required by the human body is used in the daily breathing of people, so as to carry out a series of chemical reactions, producing a large amount of energy and nutrients required by the human body. Oxygen is essential in the slow oxidation reactions that take place in these organisms. When oxygen is inhaled, the main cells of the human body will have such reaction characteristics, the cells will consciously exhale carbon dioxide, and then the oxygen inhaled by the human body will become carbon dioxide, participate in various aerobic reactions in the human body, and provide energy for various life activities of people, that is, aerobic respiration.

Metabolic organelles are mitochondria. Life is extended.

In addition, there is an organ in the human body that is responsible for gas exchange, and it is the lungs. When oxygen is inhaled through the nostrils, it enters the trachea. The trachea goes straight down and then divides into two bronchial tubes, the left and right ones, which are buried in the left and right lungs.

The bronchial tubes are constantly subdivided, producing countless tiny branches, each of which ends with several alveoli attached. The lungs are made up of overlapping bronchioles and alveoli. The surface of the alveoli is filled with capillaries.

This is where the fresh oxygen inhaled diffuses into the capillaries and travels in all directions of the body as the blood flows. At the same time, the carbon dioxide exhaust gas produced in the human body also comes to the capillaries here, enters the alveoli through gas exchange, and then collects from the bronchi to the trachea, and finally excretes with exhalation. It is through this series of processes that the fresh oxygen inhaled becomes carbon dioxide exhaust gas.

Cells will consciously exhale carbon dioxide, and then the oxygen inhaled by the human body will become carbon dioxide, which participates in various aerobic reactions in the human body and provides energy for various life activities of the human body, that is, aerobic respiration. Metabolic organelles are mitochondria. Life is extended.

It should not be possible, unless humans evolve into robots in the future.

At least not now, people can't evolve without air and water, and their bodies will be poisoned.

That is, aerobic respiration. Metabolic organelles are mitochondria. Life is extended.

It participates in various aerobic reactions in the human body and provides energy for various life activities of people, that is, aerobic respiration.

The heart is still beating and the lungs are still breathing, all of which require oxygen consumption.

It's good that you don't need air, but it's also achievable in the future, and humans should be of many kinds in the future, such as evolving into semi-artificial intelligence, cyborg people, and underwater people just like those with gills. However, I feel that artificial intelligence is stronger than other evolutionary ones, so that it can better explore the mysteries of the universe.

Human beings can't live without air, and they can't live without eating, because we have to absorb fresh air every day and eat all kinds of um, nutritious things, so that we can maintain our lives and make us live healthier.

No, if you don't eat, your body will have no energy, and you will become thinner and weaker. Even plants need to absorb nutrients and water from the soil to survive. Humans belong to animals, and animals need to eat.

No matter what time it is, it's impossible.

So I should think about some practical things myself, practical problems.

It can only be said that not for the time being.

After all, the structure of the human body needs to be like this to survive, so in this case, if you want to change this situation, you must be scientifically developed enough to be able to solve such a problem.

Humanity is worthy of air to live. You can't do it without air. You can't do it without eating. Said the old man who would die if he didn't eat. People are rice. Iron is steel. Don't eat a meal of hunger. It is not possible for a person to leave the air, nor for a person to eat.

At the very least, the current body structure supports human survival like that.

Because the earth has an atmosphere, humans and all kinds of living things can breathe. Nitrogen (N2) has the largest proportion in the earth's atmosphere, accounting for about 78, and it is an indispensable fertilizer for plant growth**; This is followed by oxygen (O2), which accounts for about 21 and on which humans and all living things depend for respiration, and which is also an element of combustion; Argon (AR) is in third place, and there are also very small amounts of carbon dioxide, neon, helium, methane, nitrogen dioxide, hydrogen, etc., which together are less than one thousandth. The ratio of nitrogen, oxygen and argon content is stable and does not change until an altitude of more than 90 km.

It is important to note that modern human activities are influencing changes in the composition of the atmosphere.

Because the atmosphere can not only allow sunlight to pass through, but also properly retain a certain amount of heat on the earth, in order to regulate the temperature on the earth and make everything prosperous.

The atmosphere is like the armor of the earth. If you have seen the moon's **, you will find that its surface is full of smashed marks, that is, thousands of meteorites fell from the sky "masterpieces". And when these meteorites hit the earth and pass through the atmosphere, most of them burn into beautiful meteors, and even if a few fall to the ground, they are exhausted by the friction with the atmosphere, and they will not cause much harm to humans.

The earth is particularly proud of the fact that there is a layer of ozone (O 3) above the atmosphere, which is a colorless but peculiar smelly gas, which is the umbrella of life. The sun's ultraviolet rays and various cosmic rays in interstellar space can harm life. The ozone layer absorbs a large amount of ultraviolet light, and the atmosphere cuts the initial enormous energy of cosmic rays.

There was a "Uncle Martin" from Mars on TV, which is of course a science fiction story, if there are "Martians", then they can only live in a hole in the ground, because there is no ozone layer in the upper layer of Mars, and strong and long-lasting ultraviolet radiation will definitely cause them to suffer from terrible cancer. In recent years, the earth's ozone layer is being destroyed due to the rise of atmospheric pollutants into the sky, and how to protect the ozone layer is an urgent issue facing mankind.

Air is an important condition for human survival.

People live in the ocean of air, and they breathe air all the time in their lives. Adults breathe about 10,000 litres of air a day, which is equivalent to 13.6 kilograms, which is about 10 times the weight of food in a day and 5-6 times the amount of water intake. If a person does not eat for 10 days he does not die, he does not die if he does not drink water for 5 days, but he dies immediately if he does not breathe for 5 minutes.

Therefore, a very important condition for human beings to be able to produce and reproduce on the earth is that the earth has a unique atmospheric environment, which enables the earth to maintain a temperature and humidity suitable for the growth of all human beings.

It is impossible for humans to survive without inhaling oxygen.

Humans and all animals on Earth need oxygen. Because human activities must consume energy, even if you are asleep and motionless on the surface, your cells and organs are still working, the heart has to beat constantly to supply blood to the whole body, and the cells and organs of the whole body have to maintain the necessary body temperature, which consumes energy. This energy is released by the oxidation process of ingested food in the body's energy metabolism.

This is a characteristic of all animals on Earth that has been created in the course of hundreds of millions of years of evolution according to the environmental conditions of the Earth, and it cannot be changed. Even if all the animals disappear in an instant, the animals that evolve again will still do the same.

As far as technology is concerned, there is no known element that can replace oxygen to supply human breathing. Most importantly, we all know that oxygen is toxic, and it is precisely because of oxygen that there is oxidation, and people will age and die because of it. If we can really find out that the second element can replace oxygen to supply us with breathing, without other ***, maybe we can really maintain the human form intact, and even achieve immortality in the true sense.

To survive without inhaling oxygen, either find an alternative element, or just thatGenetic modification。The risk of genetic modification is very high, and if there is a mistake, there is a high probability of aberration, which can lead to irreversible results. And finding new elements is even more difficult than climbing to the sky.

The above statements are only personal views, and all results are based on reality.

Not because in outer space, not only are you without air, but you also have no gravity. You live in a gravity-free space, and that is not the same nature as you are now. Your internal organs will not be what they are now, because the way they are is due to gravity.

If you live in outer space, you may not live for long.

No, in addition to air, water and food are needed for human survival, which are indispensable things for human life, and I can't even imagine people floating in space, which is really funny.

That can't be, people need oxygen, water, food, etc. to live, if a person goes to outer space, he can't live without food and water, and if it's just one person, it's difficult to live, after all, people are group animals. And if you go to outer space, you won't survive if you are taken to a black hole or hit by an asteroid.

Even if humans don't need air, they can't live in outer space.

Outer space is not just as simple as no air, because there is no air pressure in outer space, if the human body does not have a spacesuit, the body fluids will boil in outer space, and a very short time will lead to a complete loss of water in the human body, so human beings living in outer space must ensure that they will not be exposed to the outer space environment, which is an extremely harsh condition.

The second is that there is a lot of unknown radiation in outer space, and it is in a weightless environment, long-term life will cause damage to the human body, and the human body is obviously not suitable for living in outer space.

I think if humans want to survive in outer space for a long time. Not only does it not need oxygen to exist, but it also needs some other conditions, such as gravity, such as radiation, such as the distance between the sun and the earth, these are very important factors, not just do not need oxygen to survive in outer space, at least, if there is no protective measures, the air pressure in outer space is much lower than that of the earth, and human blood and ** can not bear it.

No! Air is one of the necessary conditions for human life, and other resources such as water, gravity, and food must be satisfied in order for human beings to survive.

Floating in space, nutrition comes from?

Human beings need air to live, and it is air that supports human life, and if there is no air, human beings cannot survive, let alone talk about life in outer space.

Again, no, because the unsuitable environment in outer space for human beings is not only a matter of air, but also of temperature. As long as a person is exposed to the environment of outer space, he or she will quickly turn into a popsicle.

It seems that this possibility is basically non-human, unless humans evolve into non-humans.

When the human consciousness finds a way to perpetuate, and the physical body can be transformed into a grain in an instant, and as long as there are the particles needed to cast the physical body, human beings can also be merged into a physical body in an instant! Any matter in the universe can be used for one's own use, what artificial water, artificial air is at your fingertips! At that time, the most important thing for people is the self in the spiritual consciousness, and the physical body may become meaningless.