How terrible is the universe 'eroding' the body of NASA astronaut after 286 days?

After 286 challenging days on the International Space Station (ISS), two NASA astronauts, Butch Wilmore and Suni Williams, returned to Earth. However, their emaciated image after landing has many people worried about the harsh effects of the space environment on the human body.

Osteoporosis, muscle atrophy

The microgravity environment on the ISS caused significant physical changes for the two astronauts. Without the pull of Earth’s gravity, their muscles gradually weakened due to lack of exercise, leading to muscle atrophy. After returning, they had difficulty walking and needed the help of medical staff.

Bone loss is also a serious problem. Bone density is significantly reduced, increasing the risk of osteoporosis and fractures. Bone repair after returning to Earth can take years, and may not be complete.

Physiological changes

In addition to changes to their muscles and bones, astronauts face a host of other physiological changes. Increased pressure within the skull causes spaceflight-associated visual impairment syndrome (SANS), which affects vision. They may also experience problems with short-term memory, concentration, and risk assessment.

Fluid shifts in the body are also a concern. Fluids move upward, causing swelling in the face and head, while the lower body loses water, causing the legs to shrink. This shift can lead to the risk of blood clots and venous thrombosis.

Harmful effects of cosmic radiation

One of the biggest risks for astronauts is the harmful effects of cosmic radiation. In a week on the ISS, they are exposed to the same amount of radiation as they would in a year on Earth. This radiation can damage DNA, increasing the risk of cancer and other diseases.

The arduous recovery process

NASA has a special recovery program to help astronauts cope with the effects of space travel. This program includes physical exercises, special diets, and close medical monitoring.

However, recovery is not easy. Regaining muscle strength and mobility requires perseverance and effort.

The harsh effects of the space environment on the astronaut body pose major challenges for future long-duration space travel missions.

Wilmore and Williams’ 286-day journey is a reminder of the difficulties and dangers humans face when exploring space. However, the experience and knowledge gained from this mission will contribute significantly to the development of future space missions.