The human is a species from Earth. Therefore, subjecting the body to other universal latitudes can bring changes to our anatomy. This is precisely one of the constant missions that NASA studies since its first manned space travel. By knowing how astronauts’ bodies change, they can better plan their missions. Consequently, they recently found that the heart, a fundamental engine in our operating system, reduces in size after a certain time outside the atmosphere.
It is no secret to anyone that NASA plans extensive manned trips into space. Some of these projects are to regions “close” like the Moon, with the Artemis mission. While other initiatives seek to enter deeper territories such as Mars. Specifically, all require the presence of the figure of the astronaut for long periods. Therefore, they need to know every detail that a person might suffer in these adventures.
The most recent study that determines the consequences that the heart suffers from being in space, is authored by scientists at UT Southwestern, reviews Slash Gear. They focused on checking the heart activity of astronaut Scott Kelly, now retired from space activity. This orbital crewman spent about a year inside the International Space Station (ISS) and when he returned he was subjected to several studies.
Space, astronauts and your heart
The heart lost mass despite Scott Kelly exercising six days a week while on the International Space Station. However, they observed that there were no limited conditions for the body to operate. That is, the heart was smaller, but it was still functioning at its usual levels.
The aforementioned portal publishes, Kelly’s heart lost 0.74 grams per week. They also detail that he spent a total of 340 days on the ISS in the period between March 27, 2015 and March 1, but in 2016. The exercises he constantly underwent were bicycle, treadmill and work. of resistors.
Does it affect future space travel?
This study draws the attention of astronauts and anyone who works for space agencies. Well, it is necessary to know if this is counterproductive for astronauts. And the reality is, as detailed by the author of this study, Dr. Benjamin Levine, professor of internal medicine at UT Southwestern, there is nothing to worry about. In fact, this health professional indicates that his results are encouraging for those planning longer trips in space.
“He shrugged a bit. It atrophied and got a little smaller, but the function was still good. I think this is encouraging for long-duration space flights. It shows that even after a year in space, the heart adapts relatively well, ”says Dr. Levine.
The doctor assures that there are no reasons to be alarmed and expresses that this situation also occurs on Earth, when a person undergoes strict rest. Similarly, he conducted the same experiment with 13 other NASA astronauts who spent about six months on the ISS. So, he found that the cardiac adaptation varies according to each individual. But, those who registered the reduction in the heart, it is because they were more apt to face more extensive missions.
“It all depended on how much work the astronaut’s heart was doing in space relative to how much work it regularly did on Earth,” Levine said, according to a UT Southwestern review.
Peek inside the box NASA astronaut Shannon Walker is working with below!💧The PBRE-WR experiment studies flows in microgravity to increase the efficiency of reactors in space water recovery systems by developing methods to reduce build up of bubbles. https://t.co/3pXvfoSuYK pic.twitter.com/WEukxeq661
— ISS Research (@ISS_Research) March 30, 2021