NASA: genetic changes caused by space travel, are temporary

For many years, the space Agency NASA studied the effects of space travel on the human body on the example of the astronaut twins Mark and Scott Kelly. From 2015 to 2016, Scott was on the International Space Station while his brother mark remains on Earth. After a time, the researchers compared their health outcomes and found that space travel clearly affect the expression of genes. It turned out that it’s not as bad as previously thought.

Космическое путешествие

Recently in the scientific journal Science has published an article about the fact that despite the genetic changes that occurred with Scott, it feels great. Changes to his body was temporary, and he returned to normal. This is a valuable discovery for the scientific community, because in the future humanity is going to fly to Mars and other distant planets.

In particular, the changes faced by the body of Scott, touched on telomeres — caps that protect chromosomes. It was found that these protective sections of chromosomes during space travel are beginning to slowly crumble. If these changes were not temporary, one could say that space is guaranteed to shorten the life of the astronauts, but luckily the effect was temporary.

Previous studies have also shown that long-term space missions weaken the immune system. A new discovery has proven that over time, the immune system of astronauts is also restored rather quickly — flights to the distant planets are not as scary as it may seem.

With all this, the NASA researchers needed to monitor the health status and the other astronauts, to make sure to recover after space travel can absolutely everyone. Otherwise, they will have to find ways of recovery and protection from changes.

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