When astronauts come back from space, they suffer from a lot of organ and muscle disorders, and their lifespan is shortened. Another illusion created by the profit system to expand airspace tourism
Astronauts face significant, sometimes permanent, organ health issues during spaceflight, including irreversible kidney remodelling due to cosmic radiation, a weakened and rounded heart, and severe vision changes caused by fluid shifts. Extended space travel, such as a mission to Mars, risks permanent, catastrophic damage to the kidneys.
Kidneys: Research indicates space travel can cause structural damage to kidneys, increasing the risk of stone formation and potential long-term, irreversible damage.
Heart and Cardiovascular: The heart shrinks and becomes more spherical in microgravity, making it less efficient. Arterial walls can stiffen, resembling accelerated ageing.
Eyes: Lack of gravity causes fluid shifts towards the head, putting pressure on the eyes and resulting in flattened eyeballs and visual impairment (neuro-ocular syndrome).
Bones and Muscles: Astronauts lose bone mass (roughly
per month) and suffer muscle atrophy because they are not needed for support in zero gravity, leading to “disuse osteoporosis” and weakened muscles.
Skin: The dry, controlled environment of the ISS can lead to accelerated skin thinning and dryness.
Immune System: The immune system weakens, and the body experiences reduced red blood cell production, known as anaemia