Living in space can change where your brain sits in your skull: New research
Phys.org
February 14, 2026
AI-Generated Deep Dive Summary
A groundbreaking study reveals that living in space significantly impacts the human brain, causing it to shift upward and backward inside the skull due to deformation from microgravity exposure. This phenomenon, observed in astronauts after spaceflight, highlights the profound effects of space travel on the body. The research underscores how the brain's position changes as a result of prolonged time in microgravity environments, potentially leading to structural and functional alterations.
The study attributes this shift to the lack of gravitational forces acting on the body in space, which causes fluid redistribution and affects cranial pressure. This deformation could have implications for astronauts' health, including vision problems, cognitive decline, and other neurological issues. Understanding these changes is critical for safeguarding the well-being of crew members during long-duration missions.
While short-term spaceflights may not pose significant risks, the findings raise concerns about extended exposure to microgravity, such as on missions to Mars or beyond. Researchers are now exploring ways to mitigate these effects, including potential countermeasures like specialized spacesuits or enhanced life support systems. This discovery adds another layer of complexity to the challenges of human space exploration.
The implications of this study extend beyond astronaut health, offering insights into how gravity influences brain structure and function on Earth. By studying the extreme conditions of space, scientists can gain a deeper understanding of neurological processes
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Originally published on Phys.org on 2/14/2026