No human being can live normally without gravity. If there is no gravity in your house, room or surroundings, you will remain weightless and float in the air. Just imagine what would happen to you if you had to live without gravity for a few hours or a day? Will there be any changes in your body, will your organs stop working? Will you suffer any permanent damage? Know what problems can occur with health when you have to live here without gravity?
What effect can living without gravity have on health?
It is difficult to imagine life without gravity. You must have seen that even in space, astronauts keep flying in the air. However, the amount of gravitational force there is different and varying. But, if you are kept in a room on Earth for the whole day, that too without gravity, what will be the effect on your health? indianexpress According to a news published in, when a healthy person remains in zero gravity for 24 hours, changes can be seen in blood circulation and brain functioning. Body and other liquid substances can move through the chest towards the head. This can cause nasal congestion. There may be swelling on the face. You may feel a headache.
Fluctuations in blood circulation
indianexpress According to this, if a healthy person remains in zero-gravity for 24 hours, then the blood accumulated in the lower body moves towards the chest and head due to the absence of gravity. During this period the plasma volume also starts decreasing. The body considers it as extra liquid and increases the amount of urine. One of the initial changes of weightlessness are such changes in the body. When you are on the earth, gravity pulls the blood towards the legs, but due to weightlessness this pull ends.
changes in blood pressure
In the absence of gravity, the heart does not have to work hard to pump blood upward. In a state of weightlessness, the heart has to work less hard to supply blood to the brain and upper body. However, slight fluctuations in blood pressure may be seen initially, but when plasma volume decreases, blood pressure may decrease. These cardiac changes remain minor within 24 hours. In such a situation, such changes in the body are tolerable for a healthy person.
However, within 24 hours you will not see any damage in your muscles and bones. This damage can occur if you remain in zero gravity for a week or more. When there is no pressure on the body for several days, weakening and loss of muscles and bones can be seen.
the brain is affected
Zero gravity is quite confusing from a neurological point of view. According to Dr. Pooja Anand, Consultant, Neurology, in an interview with Indian Express, the brain constantly depends on signals from the inner ear, eyes, muscles and joints to maintain the position and direction of the body. In the absence of gravity this coordinated system suddenly gets disrupted. The brain receives contradictory information, causing imbalance and spatial confusion.
How can the body become normal?
According to experts, returning to gravity may feel more difficult than leaving it. When the body’s fluid levels change in zero gravity, blood begins to be drawn to the legs after the return to gravity. This may temporarily reduce blood flow to the brain. In this situation you may feel dizzy or faint. This condition is called orthostatic intolerance. Being in zero-gravity for 24 hours can be a little uncomfortable, but it does not have any major disadvantages. Some mild symptoms may be seen such as stiffness, vomiting, nausea, swelling of the face, feeling dizzy, as well as temporary change in coordination, etc. may be felt. A healthy body quickly adjusts to this situation, even if gravity is negligible.
