New health threat on Human Spaceflight

Space trips and being an astronaut is a dream that many of us have, but it is not without many dangers, especially having an effect on your health .

Recently a new health hazard has been known to make life in danger during the long space trips in the universe.
The problem lies in the internal jugular vein (which is a large blood vessel that transports blood from the neck to the brain), as concluded by a study of 11 astronauts who spent their time on the International Space Station, and it was found that 6 of them had developed a blood stagnation or opposite blood flow in this vein specifically Within a period of 50 days.

One crew member was found to have developed thrombosis, or blockage in the internal jugular vein, the first time that this has been recorded as a result of spaceflight.

According to the team and new data, this issue must be checked before beginning to send astronauts on long voyages to Mars. It should be noted that the result of this type of clotting is not yet clear, as it can be severe or even fatal.

Exposure to the weightless environment during space travel has resulted in a chronic alteration of the circulation of blood and tissue fluid compared to the position of the body perpendicular to the ground, with unknown consequences of cerebral venous outflow, according to researchers.

A new health risk threatening life in human spaceflight - the danger of long spaceflight in the universe - the effect of living in space on the human body

Here on Earth, of course gravity does its job of pulling blood from top to bottom (from head to rest of the body), and that's one of the reasons why you feel so strange if you stand on your hands for so long.

In the ISF's gravitational environment, the matter is different. The issue of blood flow is not the only health risk we have to worry about.

The face swells and the feet shorten as a result of changing blood flow during a prolonged period of weightlessness. The possibility of a stroke increases, and the size of the plasma decreases, according to researchers.

Medical experts used the readings and images collected on the International Space Station to identify a potential problem around the internal jugular vein, while the astronaut who developed a blockage thrombus was treated with anticoagulants for the rest of the mission (astronauts identity is preserved for privacy).

We need more research parallel to the size and severity of the problem, in order to avoid its occurrence in future space trips, as the increasing number of astronauts who have developed blood flow problems are worrying.

We already know that time in space can decrease bone density, change the manufacture of intestinal bacteria, and generate pressure around our brains. At the very least, we are working on these effects before we try to reach farther from the moon, so there is a better chance to improve the beneficial solutions.

What has been found may guarantee human health in future civil or tourist spaceflight missions and space exploratory missions such as Mars.

The research has been published in the JAMA Network Open.


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